DETERMINING SHORT TO GROUND LOCATION (CAN-BUS No.2) [(E)]

• When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.

• When inspecting the connector, touch it with a paper clip or similar thin pin without directly inserting a tester probe into the terminal.

Step	Inspection	Action
1	INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)]) • Disconnect the connector 2 which has body control module (BCM) terminals 2H and 2F. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H (wiring harness side) and body ground ― Between body control module (BCM) terminal 2F (wiring harness side) and body ground • Is there continuity?	Yes	Go to the next step.
No	Replace the body control module (BCM) because there is a short to ground in the body control module (BCM). (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)
2	INSPECT FOR SHORT TO GROUND BETWEEN BODY CONTROL MODULE (BCM) AND CONNECTOR C-09 • Disconnect the connector C-09. • Connect the connector 2 which has body control module (BCM) terminals 2H and 2F. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the body control module (BCM) and connector C-09 because the wiring harness is shorted to ground.
No	Go to the next step.
3	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-53 AND CONNECTOR C-09 • Disconnect the connector C-53. • Connect the connector C-09. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-53 and connector C-09 because the wiring harness is shorted to ground.
No	Go to the next step.
4	INSPECT FOR SHORT TO GROUND BETWEEN PM SENSOR AND CONNECTOR C-53 • Inspect for continuity at the following terminals: ― Between PM sensor terminal B and body ground ― Between PM sensor terminal C and body ground • Is there continuity?	Yes	Go to the next step.
No	Go to Step 6.
5	INSPECT CAN LINE IN PM SENSOR FOR SHORT TO GROUND • Disconnect the PM sensor connector. • Inspect for continuity at the following terminals: ― Between PM sensor terminal B (wiring harness side) and body ground ― Between PM sensor terminal C (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the PM sensor and connector C-53 because the wiring harness is shorted to ground.
No	Replace the PM sensor because there is a short to ground in the PM sensor. (See PM SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
6	INSPECT FOR SHORT TO GROUND BETWEEN NOx SENSOR AND CONNECTOR C-53 • Inspect for continuity at the following terminals: ― Between NOx sensor terminal B and body ground ― Between NOx sensor terminal C and body ground • Is there continuity?	Yes	Go to the next step.
No	Go to Step 8.
7	INSPECT CAN LINE IN NOx SENSOR FOR SHORT TO GROUND • Disconnect the NOx sensor connector. • Inspect for continuity at the following terminals: ― Between NOx sensor terminal B (wiring harness side) and body ground ― Between NOx sensor terminal C (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the NOx sensor and connector C-53 because the wiring harness is shorted to ground.
No	Replace the NOx sensor because there is a short to ground in the NOx sensor. (See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
8	INSPECT FOR SHORT TO GROUND BETWEEN Mazda M Hybrid BATTERY AND CONNECTOR C-53 • Inspect for continuity at the following terminals: ― Between Mazda M Hybrid battery terminal 1B and body ground ― Between Mazda M Hybrid battery terminal 1E and body ground • Is there continuity?	Yes	Go to the next step.
No	Go to Step 10.
9	INSPECT CAN LINE IN Mazda M Hybrid BATTERY FOR SHORT TO GROUND • Disconnect the Mazda M Hybrid battery connector. • Inspect for continuity at the following terminals: ― Between Mazda M Hybrid battery terminal 1B (wiring harness side) and body ground ― Between Mazda M Hybrid battery terminal 1E (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the Mazda M Hybrid battery and connector C-53 because the wiring harness is shorted to ground.
No	Replace the Mazda M Hybrid battery because there is a short to ground in the Mazda M Hybrid battery. (See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)
10	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-08 AND CONNECTOR C-53 • Disconnect the connector C-08. • Connect the connector C-53. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-08 and connector C-53 because the wiring harness is shorted to ground.
No	• Go to the next step. (L.H.D.) • Go to Step 15. (R.H.D.)
11	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-35, C-34 AND CONNECTOR C-08 • Disconnect the connectors C-35, C-34. • Connect the connector C-08. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the connectors C-35, C-34 and connector C-08 because the wiring harness is shorted to ground.
No	Go to the next step.
12	INSPECT FOR SHORT TO GROUND BETWEEN ELECTRONICALLY CONTROLLED BRAKE UNIT AND CONNECTORS C-35, C-34 • Inspect for continuity at the following terminals: ― Between electronically controlled brake unit terminal 1D and body ground ― Between electronically controlled brake unit terminal 1F and body ground • Is there continuity?	Yes	Go to the next step.
No	Go to Step 14.
13	INSPECT CAN LINE IN ELECTRONICALLY CONTROLLED BRAKE UNIT FOR SHORT TO GROUND • Disconnect the electronically controlled brake unit connector. • Inspect for continuity at the following terminals: ― Between electronically controlled brake unit terminal 1D (wiring harness side) and body ground ― Between electronically controlled brake unit terminal 1F (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the electronically controlled brake unit and connectors C-35, C-34 because the wiring harness is shorted to ground.
No	Replace the electronically controlled brake unit because there is a short to ground in the electronically controlled brake unit. (See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [L.H.D.].) (See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [R.H.D.].)
14	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-31 AND CONNECTORS C-35, C-34 • Disconnect the connector C-31. • Connect the connectors C-35, C-34. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between connector C-31 and connectors C-35, C-34 because the wiring harness is shorted to ground.
No	Go to Step 17.
15	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-08 AND CONNECTOR C-31 • Disconnect the connector C-31. • Connect the connector C-08. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Go to the next step.
No	Go to Step 17.
16	INSPECT CAN LINE IN ELECTRONICALLY CONTROLLED BRAKE UNIT FOR SHORT TO GROUND • Disconnect the electronically controlled brake unit connector. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-08 and connector C-31 because the wiring harness is shorted to ground.
No	Replace the electronically controlled brake unit because there is a short to ground in the electronically controlled brake unit. (See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [R.H.D.].)
17	INSPECT FOR SHORT TO GROUND BETWEEN DC-DC CONVERTER (Mazda M Hybrid) AND CONNECTOR C-31 • Inspect for continuity at the following terminals: ― Between DC-DC converter (Mazda M Hybrid) terminal 1C and body ground ― Between DC-DC converter (Mazda M Hybrid) terminal 1D and body ground • Is there continuity?	Yes	Go to the next step.
No	Go to Step 19.
18	INSPECT CAN LINE IN DC-DC CONVERTER (Mazda M Hybrid) FOR SHORT TO GROUND • Disconnect the DC-DC converter (Mazda M Hybrid) connector. • Inspect for continuity at the following terminals: ― Between DC-DC converter (Mazda M Hybrid) terminal 1C (wiring harness side) and body ground ― Between DC-DC converter (Mazda M Hybrid) terminal 1D (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the DC-DC converter (Mazda M Hybrid) and connector C-31 because the wiring harness is shorted to ground.
No	Replace the DC-DC converter (Mazda M Hybrid) because there is a short to ground in the DC-DC converter (Mazda M Hybrid). (See DC-DC CONVERTER REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
19	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-02 AND CONNECTOR C-31 • Disconnect the connector C-02. • Connect the connector C-31. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-02 and connector C-31 because the wiring harness is shorted to ground.
No	Go to the next step.
20	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-02 AND CONNECTOR C-01 • Disconnect the connector C-01. • Connect the connector C-02. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Go to the next step.
No	• Go to Step 22.(SKYACTIV-G or SKYACTIV-X) • Go to Step 23.(SKYACTIV-D)
21	INSPECT CAN LINE IN INTEGRATED STARTER GENERATOR (ISG) FOR SHORT TO GROUND • Disconnect the integrated starter generator (ISG) connector. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the connector C-02 and connector C-01 / integrated starter generator (ISG) because the wiring harness is shorted to ground.
No	Replace the integrated starter generator (ISG) because there is a short to ground in the integrated starter generator (ISG). (See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-G (E)].)
22	INSPECT CAN LINE IN PCM FOR SHORT TO GROUND • Disconnect the PCM connector. • Inspect for continuity at the following terminals: ― Between PCM terminal 2M (wiring harness side) and body ground ― Between PCM terminal 2N (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the PCM and connector C-01 because the wiring harness is shorted to ground.
No	Replace the PCM because there is a short to ground in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].) (See PCM REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
23	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-02 AND CONNECTOR C-01 • Disconnect the connector C-02. • Inspect for continuity at the following terminals: ― Between PCM terminal 1AI and body ground ― Between PCM terminal 1AN and body ground • Is there continuity?	Yes	Go to the next step.
No	Repair or replace the wiring harness between the connector C-01 and connector C-02 because the wiring harness is shorted to ground.
24	INSPECT CAN LINE IN PCM FOR SHORT TO GROUND • Disconnect the PCM connector. • Inspect for continuity at the following terminals: ― Between PCM terminal 1AI (wiring harness side) and body ground ― Between PCM terminal 1AN (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the PCM and connector C-02 because the wiring harness is shorted to ground.
No	Replace the PCM because there is a short to ground in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

Step

Inspection

Action

INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)])

• Disconnect the connector 2 which has body control module (BCM) terminals 2H and 2F.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H (wiring harness side) and body ground

― Between body control module (BCM) terminal 2F (wiring harness side) and body ground

• Is there continuity?

Yes

Go to the next step.

Replace the body control module (BCM) because there is a short to ground in the body control module (BCM).

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)

INSPECT FOR SHORT TO GROUND BETWEEN BODY CONTROL MODULE (BCM) AND CONNECTOR C-09

• Disconnect the connector C-09.

• Connect the connector 2 which has body control module (BCM) terminals 2H and 2F.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the body control module (BCM) and connector C-09 because the wiring harness is shorted to ground.

Go to the next step.

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-53 AND CONNECTOR C-09

• Disconnect the connector C-53.

• Connect the connector C-09.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the connector C-53 and connector C-09 because the wiring harness is shorted to ground.

Go to the next step.

INSPECT FOR SHORT TO GROUND BETWEEN PM SENSOR AND CONNECTOR C-53

• Inspect for continuity at the following terminals:

― Between PM sensor terminal B and body ground

― Between PM sensor terminal C and body ground

• Is there continuity?

Yes

Go to the next step.

Go to Step 6.

INSPECT CAN LINE IN PM SENSOR FOR SHORT TO GROUND

• Disconnect the PM sensor connector.

• Inspect for continuity at the following terminals:

― Between PM sensor terminal B (wiring harness side) and body ground

― Between PM sensor terminal C (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the PM sensor and connector C-53 because the wiring harness is shorted to ground.

Replace the PM sensor because there is a short to ground in the PM sensor.

(See PM SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

INSPECT FOR SHORT TO GROUND BETWEEN NOx SENSOR AND CONNECTOR C-53

• Inspect for continuity at the following terminals:

― Between NOx sensor terminal B and body ground

― Between NOx sensor terminal C and body ground

• Is there continuity?

Yes

Go to the next step.

Go to Step 8.

INSPECT CAN LINE IN NOx SENSOR FOR SHORT TO GROUND

• Disconnect the NOx sensor connector.

• Inspect for continuity at the following terminals:

― Between NOx sensor terminal B (wiring harness side) and body ground

― Between NOx sensor terminal C (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the NOx sensor and connector C-53 because the wiring harness is shorted to ground.

Replace the NOx sensor because there is a short to ground in the NOx sensor.

(See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

INSPECT FOR SHORT TO GROUND BETWEEN Mazda M Hybrid BATTERY AND CONNECTOR C-53

• Inspect for continuity at the following terminals:

― Between Mazda M Hybrid battery terminal 1B and body ground

― Between Mazda M Hybrid battery terminal 1E and body ground

• Is there continuity?

Yes

Go to the next step.

Go to Step 10.

INSPECT CAN LINE IN Mazda M Hybrid BATTERY FOR SHORT TO GROUND

• Disconnect the Mazda M Hybrid battery connector.

• Inspect for continuity at the following terminals:

― Between Mazda M Hybrid battery terminal 1B (wiring harness side) and body ground

― Between Mazda M Hybrid battery terminal 1E (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the Mazda M Hybrid battery and connector C-53 because the wiring harness is shorted to ground.

Replace the Mazda M Hybrid battery because there is a short to ground in the Mazda M Hybrid battery.

(See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-08 AND CONNECTOR C-53

• Disconnect the connector C-08.

• Connect the connector C-53.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the connector C-08 and connector C-53 because the wiring harness is shorted to ground.

• Go to the next step. (L.H.D.)

• Go to Step 15. (R.H.D.)

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-35, C-34 AND CONNECTOR C-08

• Disconnect the connectors C-35, C-34.

• Connect the connector C-08.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the connectors C-35, C-34 and connector C-08 because the wiring harness is shorted to ground.

Go to the next step.

INSPECT FOR SHORT TO GROUND BETWEEN ELECTRONICALLY CONTROLLED BRAKE UNIT AND CONNECTORS C-35, C-34

• Inspect for continuity at the following terminals:

― Between electronically controlled brake unit terminal 1D and body ground

― Between electronically controlled brake unit terminal 1F and body ground

• Is there continuity?

Yes

Go to the next step.

Go to Step 14.

INSPECT CAN LINE IN ELECTRONICALLY CONTROLLED BRAKE UNIT FOR SHORT TO GROUND

• Disconnect the electronically controlled brake unit connector.

• Inspect for continuity at the following terminals:

― Between electronically controlled brake unit terminal 1D (wiring harness side) and body ground

― Between electronically controlled brake unit terminal 1F (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the electronically controlled brake unit and connectors C-35, C-34 because the wiring harness is shorted to ground.

Replace the electronically controlled brake unit because there is a short to ground in the electronically controlled brake unit.

(See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [L.H.D.].)

(See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [R.H.D.].)

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-31 AND CONNECTORS C-35, C-34

• Disconnect the connector C-31.

• Connect the connectors C-35, C-34.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between connector C-31 and connectors C-35, C-34 because the wiring harness is shorted to ground.

Go to Step 17.

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-08 AND CONNECTOR C-31

• Disconnect the connector C-31.

• Connect the connector C-08.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Go to the next step.

Go to Step 17.

INSPECT CAN LINE IN ELECTRONICALLY CONTROLLED BRAKE UNIT FOR SHORT TO GROUND

• Disconnect the electronically controlled brake unit connector.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the connector C-08 and connector C-31 because the wiring harness is shorted to ground.

Replace the electronically controlled brake unit because there is a short to ground in the electronically controlled brake unit.

(See ELECTRONICALLY CONTROLLED BRAKE UNIT REMOVAL/INSTALLATION [R.H.D.].)

INSPECT FOR SHORT TO GROUND BETWEEN DC-DC CONVERTER (Mazda M Hybrid) AND CONNECTOR C-31

• Inspect for continuity at the following terminals:

― Between DC-DC converter (Mazda M Hybrid) terminal 1C and body ground

― Between DC-DC converter (Mazda M Hybrid) terminal 1D and body ground

• Is there continuity?

Yes

Go to the next step.

Go to Step 19.

INSPECT CAN LINE IN DC-DC CONVERTER (Mazda M Hybrid) FOR SHORT TO GROUND

• Disconnect the DC-DC converter (Mazda M Hybrid) connector.

• Inspect for continuity at the following terminals:

― Between DC-DC converter (Mazda M Hybrid) terminal 1C (wiring harness side) and body ground

― Between DC-DC converter (Mazda M Hybrid) terminal 1D (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the DC-DC converter (Mazda M Hybrid) and connector C-31 because the wiring harness is shorted to ground.

Replace the DC-DC converter (Mazda M Hybrid) because there is a short to ground in the DC-DC converter (Mazda M Hybrid).

(See DC-DC CONVERTER REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-02 AND CONNECTOR C-31

• Disconnect the connector C-02.

• Connect the connector C-31.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the connector C-02 and connector C-31 because the wiring harness is shorted to ground.

Go to the next step.

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-02 AND CONNECTOR C-01

• Disconnect the connector C-01.

• Connect the connector C-02.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Go to the next step.

• Go to Step 22.(SKYACTIV-G or SKYACTIV-X)

• Go to Step 23.(SKYACTIV-D)

INSPECT CAN LINE IN INTEGRATED STARTER GENERATOR (ISG) FOR SHORT TO GROUND

• Disconnect the integrated starter generator (ISG) connector.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the connector C-02 and connector C-01 / integrated starter generator (ISG) because the wiring harness is shorted to ground.

Replace the integrated starter generator (ISG) because there is a short to ground in the integrated starter generator (ISG).

(See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-G (E)].)

INSPECT CAN LINE IN PCM FOR SHORT TO GROUND

• Disconnect the PCM connector.

• Inspect for continuity at the following terminals:

― Between PCM terminal 2M (wiring harness side) and body ground

― Between PCM terminal 2N (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the PCM and connector C-01 because the wiring harness is shorted to ground.

Replace the PCM because there is a short to ground in the PCM.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

(See PCM REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTOR C-02 AND CONNECTOR C-01

• Disconnect the connector C-02.

• Inspect for continuity at the following terminals:

― Between PCM terminal 1AI and body ground

― Between PCM terminal 1AN and body ground

• Is there continuity?

Yes

Go to the next step.

Repair or replace the wiring harness between the connector C-01 and connector C-02 because the wiring harness is shorted to ground.

INSPECT CAN LINE IN PCM FOR SHORT TO GROUND

• Disconnect the PCM connector.

• Inspect for continuity at the following terminals:

― Between PCM terminal 1AI (wiring harness side) and body ground

― Between PCM terminal 1AN (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the PCM and connector C-02 because the wiring harness is shorted to ground.

Replace the PCM because there is a short to ground in the PCM.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

Step	Inspection	Action
1	INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)]) • Disconnect the connector 2 which has body control module (BCM) terminals 2H and 2F. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H (wiring harness side) and body ground ― Between body control module (BCM) terminal 2F (wiring harness side) and body ground • Is there continuity?	Yes	• Go to the next step. (R.H.D.) • Go to Step 6. (L.H.D.)
No	Replace the body control module (BCM) because there is a short to ground in the body control module (BCM). (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)
2	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-35, C-34 AND BODY CONTROL MODULE (BCM) • Disconnect the connectors C-35, C-34. • Connect the connector 2 which has body control module (BCM) terminals 2H and 2F. • Inspect for continuity at the following terminals: ― Between body control module (BCM) terminal 2H and body ground ― Between body control module (BCM) terminal 2F and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the connectors C-35, C-34 and body control module (BCM) because the wiring harness is shorted to ground.
No	Go to the next step.
3	INSPECT FOR SHORT TO GROUND BETWEEN DSC HU/ CM AND CONNECTORS C-35, C-34 • Inspect for continuity at the following terminals: ― Between DSC HU/CM terminal AQ and body ground ― Between DSC HU/CM terminal AN and body ground • Is there continuity?	Yes	Go to the next step.
No	Go to Step 5.
4	INSPECT CAN LINE IN DSC HU/CM FOR SHORT TO GROUND • Disconnect the DSC HU/CM connector. • Inspect for continuity at the following terminals: ― Between DSC HU/CM terminal AQ (wiring harness side) and body ground ― Between DSC HU/CM terminal AN (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the DSC HU/CM and connectors C-35, C-34 because the wiring harness is shorted to ground.
No	Replace the DSC HU/CM because there is a short to ground in the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
5	INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-35, C-34 AND PCM • Disconnect the PCM connector. • Inspect for continuity at the following terminals: ― Between PCM terminal 2M (wiring harness side) and body ground ― Between PCM terminal 2N (wiring harness side) and body ground • Is there continuity?	Yes	Replace the PCM because there is a short to ground in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)
No	Repair or replace the wiring harness between the PCM and connectors C-35, C-34 because the wiring harness is shorted to ground.
6	INSPECT CAN LINE IN DSC HU/CM FOR SHORT TO GROUND • Disconnect the DSC HU/CM connector. • Inspect for continuity at the following terminals: ― Between DSC HU/CM terminal AQ (wiring harness side) and body ground ― Between DSC HU/CM terminal AN (wiring harness side) and body ground • Is there continuity?	Yes	Go to the next step.
No	Replace the DSC HU/CM because there is a short to ground in the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (E)].)
7	INSPECT CAN LINE IN PCM FOR SHORT TO GROUND • Disconnect the PCM connector. • Inspect for continuity at the following terminals: ― Between PCM terminal 2M (wiring harness side) and body ground ― Between PCM terminal 2N (wiring harness side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness between the DSC HU/CM and body control module (BCM) / PCM because the wiring harness is shorted to ground.
No	Replace the PCM because there is a short to ground in the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

Step

Inspection

Action

INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND

• Switch the ignition off.

• Disconnect the negative battery terminal.

(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)])

• Disconnect the connector 2 which has body control module (BCM) terminals 2H and 2F.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H (wiring harness side) and body ground

― Between body control module (BCM) terminal 2F (wiring harness side) and body ground

• Is there continuity?

Yes

• Go to the next step. (R.H.D.)

• Go to Step 6. (L.H.D.)

Replace the body control module (BCM) because there is a short to ground in the body control module (BCM).

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-35, C-34 AND BODY CONTROL MODULE (BCM)

• Disconnect the connectors C-35, C-34.

• Connect the connector 2 which has body control module (BCM) terminals 2H and 2F.

• Inspect for continuity at the following terminals:

― Between body control module (BCM) terminal 2H and body ground

― Between body control module (BCM) terminal 2F and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the connectors C-35, C-34 and body control module (BCM) because the wiring harness is shorted to ground.

Go to the next step.

INSPECT FOR SHORT TO GROUND BETWEEN DSC HU/ CM AND CONNECTORS C-35, C-34

• Inspect for continuity at the following terminals:

― Between DSC HU/CM terminal AQ and body ground

― Between DSC HU/CM terminal AN and body ground

• Is there continuity?

Yes

Go to the next step.

Go to Step 5.

INSPECT CAN LINE IN DSC HU/CM FOR SHORT TO GROUND

• Disconnect the DSC HU/CM connector.

• Inspect for continuity at the following terminals:

― Between DSC HU/CM terminal AQ (wiring harness side) and body ground

― Between DSC HU/CM terminal AN (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the DSC HU/CM and connectors C-35, C-34 because the wiring harness is shorted to ground.

Replace the DSC HU/CM because there is a short to ground in the DSC HU/CM.

(See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)

INSPECT FOR SHORT TO GROUND BETWEEN CONNECTORS C-35, C-34 AND PCM

• Disconnect the PCM connector.

• Inspect for continuity at the following terminals:

― Between PCM terminal 2M (wiring harness side) and body ground

― Between PCM terminal 2N (wiring harness side) and body ground

• Is there continuity?

Yes

Replace the PCM because there is a short to ground in the PCM.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

Repair or replace the wiring harness between the PCM and connectors C-35, C-34 because the wiring harness is shorted to ground.

INSPECT CAN LINE IN DSC HU/CM FOR SHORT TO GROUND

• Disconnect the DSC HU/CM connector.

• Inspect for continuity at the following terminals:

― Between DSC HU/CM terminal AQ (wiring harness side) and body ground

― Between DSC HU/CM terminal AN (wiring harness side) and body ground

• Is there continuity?

Yes

Go to the next step.

Replace the DSC HU/CM because there is a short to ground in the DSC HU/CM.

(See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (E)].)

INSPECT CAN LINE IN PCM FOR SHORT TO GROUND

• Disconnect the PCM connector.

• Inspect for continuity at the following terminals:

― Between PCM terminal 2M (wiring harness side) and body ground

― Between PCM terminal 2N (wiring harness side) and body ground

• Is there continuity?

Yes

Repair or replace the wiring harness between the DSC HU/CM and body control module (BCM) / PCM because the wiring harness is shorted to ground.

Replace the PCM because there is a short to ground in the PCM.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

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