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DTC P0DE6:00 [Mazda M Hybrid BATTERY]

id140204310500

Details On DTCs

Description

Mazda M Hybrid battery: Cell over-discharge malfunction

Detection condition

Determination conditions

•  The voltage of the cell in the Mazda M Hybrid battery is less than 1.5 V.

Preconditions

•  Mazda M Hybrid battery is any of the following conditions (PID: BECM_STAT)

―  INITIAL

―  STANDBY

―  PRECHARGE

―  READY

•  The following DTCs are not detected:

―  P0B3C:00, P0B3D:11, P0B3D:13 and P0B3E:00

Malfunction determination period

•  3 s period

Drive cycle

•  1

Self test type

•  CMDTC self test, ODDTC self test

Sensor used

•  Mazda M Hybrid battery

Fail-safe function

•  Stops power supply from the Mazda M Hybrid battery and supplies power to the vehicle’s electrical devices (12 V power supply) from the 12 V battery.

•  Inhibits the i-stop control.

•  Inhibits the non-power generation control.

•  Inhibits regenerative braking by the integrated starter generator (ISG).

•  Inhibits motor assist control by the integrated starter generator (ISG).

Vehicle status when DTCs are output

•  If the vehicle continues to be driven while the DTC is detected, the 12 V battery will be depleted and the vehicle can no longer be driven.

•  Inhibits the i-stop control.

Possible cause

•  Leaving vehicle for long periods with short to power supply in IG1 relay No.2 circuit

•  Integrated starter generator (ISG) malfunction

•  F14 20 A fuse malfunction (with seat warmer system)

•  Malfunction with 30 A fuse installed to DC-DC converter (Mazda M Hybrid) (with seat warmer system)

•  DC-DC converter (Mazda M Hybrid) malfunction

•  Short to ground in Mazda M Hybrid battery charge/discharge circuit

•  Mazda M Hybrid battery malfunction

Description	Mazda M Hybrid battery: Cell over-discharge malfunction
Detection condition	Determination conditions	• The voltage of the cell in the Mazda M Hybrid battery is less than 1.5 V.
Preconditions	• Mazda M Hybrid battery is any of the following conditions (PID: BECM_STAT) ― INITIAL ― STANDBY ― PRECHARGE ― READY • The following DTCs are not detected: ― P0B3C:00, P0B3D:11, P0B3D:13 and P0B3E:00
Malfunction determination period	• 3 s period
Drive cycle	• 1
Self test type	• CMDTC self test, ODDTC self test
Sensor used	• Mazda M Hybrid battery
Fail-safe function	• Stops power supply from the Mazda M Hybrid battery and supplies power to the vehicle’s electrical devices (12 V power supply) from the 12 V battery. • Inhibits the i-stop control. • Inhibits the non-power generation control. • Inhibits regenerative braking by the integrated starter generator (ISG). • Inhibits motor assist control by the integrated starter generator (ISG).
Vehicle status when DTCs are output	• If the vehicle continues to be driven while the DTC is detected, the 12 V battery will be depleted and the vehicle can no longer be driven. • Inhibits the i-stop control.
Possible cause	• Leaving vehicle for long periods with short to power supply in IG1 relay No.2 circuit • Integrated starter generator (ISG) malfunction • F14 20 A fuse malfunction (with seat warmer system) • Malfunction with 30 A fuse installed to DC-DC converter (Mazda M Hybrid) (with seat warmer system) • DC-DC converter (Mazda M Hybrid) malfunction • Short to ground in Mazda M Hybrid battery charge/discharge circuit • Mazda M Hybrid battery malfunction

Function Explanation (DTC Detection Outline)

• If the voltage of each cell (No.1—No.9) in the Mazda M Hybrid battery is less than 1.5 V for a continuous 3 s, the Mazda M Hybrid battery determines a malfunction and stores a DTC.

Repeatability Verification Procedure

• Not applicable

PID Item/Simulation Item Used In Diagnosis

PID/DATA monitor item table

Module	PIDs	Reference
Mazda M Hybrid battery	CELL_VOLT_1	(See PID/DATA MONITOR TABLE [Mazda M Hybrid BATTERY].)
	CELL_VOLT_2
	CELL_VOLT_3
	CELL_VOLT_4
	CELL_VOLT_5
	CELL_VOLT_6
	CELL_VOLT_7
	CELL_VOLT_8
	CELL_VOLT_9

Diagnostic Procedure

Step

Inspection

Results

Action

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

•  Record the snapshot data.

Note

•  Recording can be facilitated using the screen capture function of the PC.

—

Go to the next step.

2

INSPECT FOR SHORT CIRCUIT IN Mazda M Hybrid BATTERY

•  Access the following PIDs using the M-MDS:
(See PID/DATA MONITOR INSPECTION.)

(See PID/DATA MONITOR TABLE [Mazda M Hybrid BATTERY].)

Mazda M Hybrid battery:

―  CELL_VOLT_1

―  CELL_VOLT_2

―  CELL_VOLT_3

―  CELL_VOLT_4

―  CELL_VOLT_5

―  CELL_VOLT_6

―  CELL_VOLT_7

―  CELL_VOLT_8

―  CELL_VOLT_9

•  Perform the DTC inspection for the Mazda M Hybrid battery.
(See DTC INSPECTION.)

•  Is P0DE6:00 displayed as a present malfunction and is there any cell voltage less than 1.5 V?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the Mazda M Hybrid battery and perform the repair completion verification 1.
(See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)

No

Go to the next step.

3

INSPECT FOR OTHER RELATED DTCs

•  Perform the DTC inspection for the Mazda M Hybrid battery.
(See DTC INSPECTION.)

•  Are any of the following DTCs displayed?

―  P1793:12

―  P0AA1:00

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC P1793:12 [Mazda M Hybrid BATTERY].)

(See DTC P0AA1:00 [Mazda M Hybrid BATTERY].)

No

Go to the next step.

4

INSPECT FOR OTHER RELATED DTCs

•  Perform the DTC inspection for the integrated starter generator (ISG).
(See DTC INSPECTION.)

•  Are any of the following DTCs displayed?

―  P0A7A:00

―  P1BC5:00

―  P1BC6:00

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC P0A7A:00 OR P1BC5:00 [INTEGRATED STARTER GENERATOR (ISG)].)

(See DTC P1BC6:00 [INTEGRATED STARTER GENERATOR (ISG)].)

No

Go to the next step.

5

INSPECT FOR OTHER RELATED DTCs

•  Perform the DTC inspection for the DC-DC converter (Mazda M Hybrid).
(See DTC INSPECTION.)

•  Is DTC U3000:49 displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC U3000:49 [DC-DC CONVERTER (Mazda M Hybrid)].)

No

Go to the next step.

6

INSPECT Mazda M Hybrid BATTERY CHARGE/DISCHARGE CIRCUIT FOR SHORT TO GROUND

•  Verify that the integrated starter generator (ISG) connector is connected.

•  Inspect the applicable circuit for a short to ground.
(See CIRCUIT INSPECTION.)

•  Is the circuit normal?

Yes

The system is normal. (Explain to the customer that a malfunction was detected temporarily, but the vehicle is currently normal.)

Go to repair completion verification.

No

Go to the next step.

7

INTEGRATED STARTER GENERATOR (ISG) INTERNAL CIRCUIT FOR SHORT TO GROUND

•  Disconnect the integrated starter generator (ISG) connector.

•  Inspect for continuity between integrated starter generator (ISG) terminal 2A (part-side) and body ground.

•  Is there continuity?

Yes

Replace the integrated starter generator (ISG) and perform the repair completion verification 1.

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

(See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

No

Without seat warmer system:

•  Go to Step 10.

With seat warmer system:

•  Go to the next step.

8

INSPECT F14 20 A FUSE

•  Remove the F14 20 A fuse.

•  Inspect the F14 20 A fuse.

•  Is the fuse normal?

Yes

Reinstall the fuse, then go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification 1.

9

INSPECT 30 A FUSE INSTALLED TO DC-DC CONVERTER (Mazda M Hybrid)

•  Inspect the 30 A fuse installed to the DC-DC converter (Mazda M Hybrid).
(See DC-DC CONVERTER (Mazda M Hybrid) REMOVAL/INSTALLATION.)

•  Is the fuse normal?

Yes

Reinstall the fuse, then go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification 1.

10

INSPECT DC-DC CONVERTER (Mazda M Hybrid) INTERNAL CIRCUIT FOR SHORT TO GROUND

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

•  Inspect for continuity between DC-DC converter (Mazda M Hybrid) terminal 2A (part-side) and body ground.

•  Is there continuity?

Yes

Replace the DC-DC converter (Mazda M Hybrid) and perform the repair completion verification 1.

(See DC-DC CONVERTER (Mazda M Hybrid) REMOVAL/INSTALLATION.)

No

Go to the next step.

11

INSPECT Mazda M Hybrid BATTERY CHARGE/DISCHARGE CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(See CIRCUIT INSPECTION.)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification 1.

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the Mazda M Hybrid battery.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the Mazda M Hybrid battery, then go to the next step.
(See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION • Record the snapshot data. Note • Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
2	INSPECT FOR SHORT CIRCUIT IN Mazda M Hybrid BATTERY • Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.) (See PID/DATA MONITOR TABLE [Mazda M Hybrid BATTERY].) Mazda M Hybrid battery: ― CELL_VOLT_1 ― CELL_VOLT_2 ― CELL_VOLT_3 ― CELL_VOLT_4 ― CELL_VOLT_5 ― CELL_VOLT_6 ― CELL_VOLT_7 ― CELL_VOLT_8 ― CELL_VOLT_9 • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Is P0DE6:00 displayed as a present malfunction and is there any cell voltage less than 1.5 V?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the Mazda M Hybrid battery and perform the repair completion verification 1. (See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)
2		No	Go to the next step.
3	INSPECT FOR OTHER RELATED DTCs • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Are any of the following DTCs displayed? ― P1793:12 ― P0AA1:00	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC P1793:12 [Mazda M Hybrid BATTERY].) (See DTC P0AA1:00 [Mazda M Hybrid BATTERY].)
3		No	Go to the next step.
4	INSPECT FOR OTHER RELATED DTCs • Perform the DTC inspection for the integrated starter generator (ISG). (See DTC INSPECTION.) • Are any of the following DTCs displayed? ― P0A7A:00 ― P1BC5:00 ― P1BC6:00	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC P0A7A:00 OR P1BC5:00 [INTEGRATED STARTER GENERATOR (ISG)].) (See DTC P1BC6:00 [INTEGRATED STARTER GENERATOR (ISG)].)
4		No	Go to the next step.
5	INSPECT FOR OTHER RELATED DTCs • Perform the DTC inspection for the DC-DC converter (Mazda M Hybrid). (See DTC INSPECTION.) • Is DTC U3000:49 displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC U3000:49 [DC-DC CONVERTER (Mazda M Hybrid)].)
5		No	Go to the next step.
6	INSPECT Mazda M Hybrid BATTERY CHARGE/DISCHARGE CIRCUIT FOR SHORT TO GROUND • Verify that the integrated starter generator (ISG) connector is connected. • Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) • Is the circuit normal?	Yes	The system is normal. (Explain to the customer that a malfunction was detected temporarily, but the vehicle is currently normal.) Go to repair completion verification.
6		No	Go to the next step.
7	INTEGRATED STARTER GENERATOR (ISG) INTERNAL CIRCUIT FOR SHORT TO GROUND • Disconnect the integrated starter generator (ISG) connector. • Inspect for continuity between integrated starter generator (ISG) terminal 2A (part-side) and body ground. • Is there continuity?	Yes	Replace the integrated starter generator (ISG) and perform the repair completion verification 1. (See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-G (E)].) (See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
7		No	Without seat warmer system: • Go to Step 10. With seat warmer system: • Go to the next step.
8	INSPECT F14 20 A FUSE • Remove the F14 20 A fuse. • Inspect the F14 20 A fuse. • Is the fuse normal?	Yes	Reinstall the fuse, then go to the next step.
8		No	Repair or replace the malfunctioning location and perform the repair completion verification 1.
9	INSPECT 30 A FUSE INSTALLED TO DC-DC CONVERTER (Mazda M Hybrid) • Inspect the 30 A fuse installed to the DC-DC converter (Mazda M Hybrid). (See DC-DC CONVERTER (Mazda M Hybrid) REMOVAL/INSTALLATION.) • Is the fuse normal?	Yes	Reinstall the fuse, then go to the next step.
9		No	Repair or replace the malfunctioning location and perform the repair completion verification 1.
10	INSPECT DC-DC CONVERTER (Mazda M Hybrid) INTERNAL CIRCUIT FOR SHORT TO GROUND • Disconnect the DC-DC converter (Mazda M Hybrid) connector. • Inspect for continuity between DC-DC converter (Mazda M Hybrid) terminal 2A (part-side) and body ground. • Is there continuity?	Yes	Replace the DC-DC converter (Mazda M Hybrid) and perform the repair completion verification 1. (See DC-DC CONVERTER (Mazda M Hybrid) REMOVAL/INSTALLATION.)
10		No	Go to the next step.
11	INSPECT Mazda M Hybrid BATTERY CHARGE/DISCHARGE CIRCUIT FOR SHORT TO GROUND • Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) • Is the circuit normal?	Yes	Go to the next step.
11		No	Repair or replace the malfunctioning location and perform the repair completion verification 1.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the Mazda M Hybrid battery, then go to the next step. (See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.