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DETERMINING SHORT TO POWER SUPPLY LOCATION (CAN-BUS No.5) [(E)]

DETERMINING SHORT TO POWER SUPPLY LOCATION (CAN-BUS No.5) [(E)]


id1002x2003500

Caution
•  Perform the following malfunction diagnosis only when it is diagnosed with a short to ground by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

System Wiring Diagram

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Determination Procedure

Caution
•  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.
•  Disconnect the negative battery terminal before performing any work that requires handling of connectors.

Step

Inspection

Action

1
INSPECT CAN LINE BETWEEN BODY CONTROL MODULE (BCM) AND CONNECTOR C-06 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector C-06.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 3.
No
Go to the next step.
2
INSPECT BODY CONTROL MODULE (BCM) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector 2 which has body control module (BCM) terminals 2E and 2G.
•  Connect the connector C-06.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G (wiring harness side).
•  Is the voltage between 1.5—3.5 V?
Yes
Replace the body control module (BCM) because there is a short to the power supply in the body control module (BCM).
No
Repair or replace the wiring harness between the body control module (BCM) and connector C-06 because the wiring harness is shorted to the power supply.
3
INSPECT CAN LINE BETWEEN CONNECTOR C-47 AND CONNECTOR C-06 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector C-47.
•  Connect the connector C-06.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness between the connector C-47 and connector C-06 because the wiring harness is shorted to the power supply.
4
INSPECT CAN LINE BETWEEN PARKING ASSIST UNIT (OPTICAL) / 360° VIEW MONITORING CAMERA UNIT AND CONNECTOR C-47 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at parking assist unit (optical) / 360° view monitoring camera unit terminals 1C and 1A.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 6.
No
Go to the next step.
5
INSPECT PARKING ASSIST UNIT (OPTICAL) / 360° VIEW MONITORING CAMERA UNIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the parking assist unit (optical) / 360° view monitoring camera unit connector.
•  Connect the connector C-47.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Replace the parking assist unit (optical) / 360° view monitoring camera unit because there is a short to the power supply in the parking assist unit (optical) / 360° view monitoring camera unit.
No
Repair or replace the wiring harness between the parking assist unit (optical) / 360° view monitoring camera unit and connector C-47 because the wiring harness is shorted to the power supply.
6
INSPECT JB No.1 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector C-46.
•  Connect the connector C-47.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to the next step.
No
Replace the JB No.1 because there is a short to the power supply in the JB No.1.
7
INSPECT CAN LINE BETWEEN CONNECTOR C-13 AND CONNECTOR C-46 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector C-13.
•  Connect the connector C-46.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness between the connector C-13 and connector C-46 because the wiring harness is shorted to the power supply.
8
INSPECT CAN LINE BETWEEN CONNECTOR C-39 AND CONNECTOR C-13 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector C-39.
•  Connect the connector C-13.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness between the connector C-39 and connector C-13 because the wiring harness is shorted to the power supply.
9
INSPECT CAN LINE BETWEEN DRIVER MONITORING CAMERA UNIT AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY
•  Measure the voltage at driver monitoring camera unit terminals 1F and 1E.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to Step 11.
No
Go to the next step.
10
INSPECT DRIVER MONITORING CAMERA UNIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the driver monitoring camera unit connector.
•  Connect the connector C-39.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Replace the driver monitoring camera unit because there is a short to the power supply in the driver monitoring camera unit.
No
Repair or replace the wiring harness between the driver monitoring camera unit and connector C-39 because the wiring harness is shorted to the power supply.
11
INSPECT CAN LINE BETWEEN CONNECTOR C-16 AND CONNECTOR C-39 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector C-16.
•  Connect the connector C-39.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness between the connector C-16 and connector C-39 because the wiring harness is shorted to the power supply.
12
INSPECT CAN LINE BETWEEN CONNECTOR C-27 AND CONNECTOR C-16 FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the connector C-27.
•  Connect the connector C-16.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness between the connector C-27 and connector C-16 because the wiring harness is shorted to the power supply.
13
INSPECT DRIVER FORWARD SENSING CAMERA (FSC) FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the forward sensing camera (FSC) connector.
•  Connect the connector C-27.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off).
•  Measure the voltage at body control module (BCM) terminals 2E and 2G.
•  Is the voltage between 1.5—3.5 V?
Yes
Replace the forward sensing camera (FSC) because there is a short to the power supply in the forward sensing camera (FSC).
No
Repair or replace the wiring harness between the forward sensing camera (FSC) and connector C-27 because the wiring harness is shorted to the power supply.