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DTC P1B04:33, P1B04:81 OR P1B04:96 [Mazda M Hybrid BATTERY]

id140204314400

Details On DTCs

Description

P1B04:33: Communication error (detected by analog IC) between analog IC and CPU

P1B04:81: Communication error (detected by CPU) between analog IC and CPU

P1B04:96: Data reading or data verification error in analog IC in Mazda M Hybrid battery

Detection condition

Determination conditions

P1B04:33

•  Communication error between analog IC and CPU is detected by analog IC

P1B04:81

•  Communication error between analog IC and CPU is detected by CPU

P1B04:96

•  A data reading error or data verification error occurs in the analog IC in the Mazda M Hybrid battery.

Preconditions

P1B04:33 or P1B04:81

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

―  INITIAL

―  STANDBY

―  PRECHARGE

―  READY

P1B04:96

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

―  INITIAL

―  READY

•  The following DTC is not detected:

―  P1B04:81

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

•  The integrated starter generator (ISG) only generates power required for power supply to the 12 V system.

•  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

•  Inhibits the i-stop control.

Possible cause

•  Mazda M Hybrid battery malfunction

Description	P1B04:33: Communication error (detected by analog IC) between analog IC and CPU P1B04:81: Communication error (detected by CPU) between analog IC and CPU P1B04:96: Data reading or data verification error in analog IC in Mazda M Hybrid battery
Detection condition	Determination conditions	P1B04:33 • Communication error between analog IC and CPU is detected by analog IC
P1B04:81 • Communication error between analog IC and CPU is detected by CPU
P1B04:96 • A data reading error or data verification error occurs in the analog IC in the Mazda M Hybrid battery.
Preconditions	P1B04:33 or P1B04:81 • Mazda M Hybrid battery is any of the following conditions (PID: BECM_STAT) ― INITIAL ― STANDBY ― PRECHARGE ― READY P1B04:96 • Mazda M Hybrid battery is any of the following conditions (PID: BECM_STAT) ― INITIAL ― READY • The following DTC is not detected: ― P1B04:81
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	• The integrated starter generator (ISG) only generates power required for power supply to the 12 V system. • 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	• Inhibits the i-stop control.
Possible cause	• Mazda M Hybrid battery malfunction

System Wiring Diagram

• Not applicable

Function Explanation (DTC Detection Outline)

• If an internal part malfunction is detected by the Mazda M Hybrid battery on-board diagnostic function for 3 s, the Mazda M Hybrid battery determines a malfunction and stores a DTC.

Repeatability Verification Procedure

1. Switch the ignition ON (engine off or on) and wait for 10 s or more.

PID Item/Simulation Item Used In Diagnosis

• Not applicable

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 WHETHER MALFUNCTION IS PRESENT OR PAST

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

•  Is DTC P1B04:33, P1B04:81 or P1B04:96 a present malfunction?

Yes

Go to the next step.

No

Go to Step 4.

3

VERIFY WHETHER MALFUNCTION IS PRESENT OR PAST AGAIN

•  Switch the ignition off.

•  Switch the ignition ON (engine off or on) and wait for 10 s or more.

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

•  Is DTC P1B04:33, P1B04:81 or P1B04:96 a present malfunction?

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.
(See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)

No

Go to the next step.

4

INSPECT Mazda M Hybrid BATTERY FOR MALFUNCTION DEPENDING ON REPEATABILITY

•  Switch the ignition off.

•  Switch the ignition ON (engine off or on) and wait for 10 s or more.

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

•  Is DTC P1B04:33, P1B04:81 or P1B04:96 a present malfunction?

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.
(See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)

No

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

Go to the next step.

Repair completion verification

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	VERIFY WHETHER MALFUNCTION IS PRESENT OR PAST • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Is DTC P1B04:33, P1B04:81 or P1B04:96 a present malfunction?	Yes	Go to the next step.
2		No	Go to Step 4.
3	VERIFY WHETHER MALFUNCTION IS PRESENT OR PAST AGAIN • Switch the ignition off. • Switch the ignition ON (engine off or on) and wait for 10 s or more. • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Is DTC P1B04:33, P1B04:81 or P1B04:96 a present malfunction?	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. (See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)
3		No	Go to the next step.
4	INSPECT Mazda M Hybrid BATTERY FOR MALFUNCTION DEPENDING ON REPEATABILITY • Switch the ignition off. • Switch the ignition ON (engine off or on) and wait for 10 s or more. • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Is DTC P1B04:33, P1B04:81 or P1B04:96 a present malfunction?	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. (See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)
4		No	The system is normal. (Explain to the customer that a malfunction was detected temporarily, but the vehicle is currently normal.) Go to the next step.
Repair completion verification	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		No	DTC troubleshooting completed.