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DTC P0DE7:1C [Mazda M Hybrid BATTERY]

id140204310700

Details On DTCs

Description	Mazda M Hybrid battery: Cell overcharge malfunction (recovery)
Detection condition	Determination conditions	•  The total voltage monitor is more than 23.7 V.
	Preconditions	•  Mazda M Hybrid battery is any of the following conditions (PID: BECM_STAT) ―  READY •  The following DTCs are detected: ―  P0B3C:00, P0B3D:11, P0B3D:13, P0B3E:00, P1B04:33 and P1B04:81
	Malfunction determination period	•  0.5 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	•  Integrated starter generator (ISG) malfunction •  Mazda M Hybrid battery malfunction ―  Mazda M Hybrid battery cell deterioration

System Wiring Diagram

Function Explanation (DTC Detection Outline)

Repeatability Verification Procedure

PID Item/Simulation Item Used In Diagnosis

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	VERIFY Mazda M Hybrid BATTERY DTC •  Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) •  Are any of the following DTCs displayed? ―  P0B3C:00 ―  P0B3D:11 ―  P0B3D:13 ―  P0B3E:00 ―  P1B04:33 ―  P1B04:81	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC P0B3C:00 OR P0B3E:00 [Mazda M Hybrid BATTERY].) (See DTC P0B3D:11 OR P0B3D:13 [Mazda M Hybrid BATTERY].) (See DTC P1B04:33, P1B04:81 OR P1B04:96 [Mazda M Hybrid BATTERY].)
		No	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.)
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.) •  Switch the ignition off, then ON (engine on). •  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.