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DTC P1B05:00 [Mazda M Hybrid BATTERY]

id140204030200

Details On DTCs

Description

Voltage at Mazda M Hybrid battery terminal 1D: Low input

Detection condition

Determination conditions

•  The voltage of Mazda M Hybrid battery terminal 1D is less than 5.4 V.

Preconditions

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

―  STANDBY

―  PRECHARGE

―  READY

•  The following DTCs are not detected:

―  P1B07:16 and P1B07:17

Malfunction determination period

•  25 s period

Drive cycle

•  1

Self test type

•  CMDTC self test, ODDTC self test

Sensor used

•  Mazda M Hybrid battery

Fail-safe function

•  Inhibits the i-stop control.

Vehicle status when DTCs are output

•  Inhibits the i-stop control.

Possible cause

•  Short to ground in Mazda M Hybrid battery power supply circuit

•  Open circuit in Mazda M Hybrid battery power supply circuit

•  Mazda M Hybrid is stopped.

•  Battery malfunction

―  Over-discharge

―  Poor connection of battery terminal

•  Mazda M Hybrid battery malfunction

Description	Voltage at Mazda M Hybrid battery terminal 1D: Low input
Detection condition	Determination conditions	• The voltage of Mazda M Hybrid battery terminal 1D is less than 5.4 V.
Preconditions	• Mazda M Hybrid battery is any of the following conditions (PID: BECM_STAT) ― STANDBY ― PRECHARGE ― READY • The following DTCs are not detected: ― P1B07:16 and P1B07:17
Malfunction determination period	• 25 s period
Drive cycle	• 1
Self test type	• CMDTC self test, ODDTC self test
Sensor used	• Mazda M Hybrid battery
Fail-safe function	• Inhibits the i-stop control.
Vehicle status when DTCs are output	• Inhibits the i-stop control.
Possible cause	• Short to ground in Mazda M Hybrid battery power supply circuit • Open circuit in Mazda M Hybrid battery power supply circuit • Mazda M Hybrid is stopped. • Battery malfunction ― Over-discharge ― Poor connection of battery terminal • Mazda M Hybrid battery malfunction

Function Explanation (DTC Detection Outline)

• If the voltage of the Mazda M Hybrid battery terminal 1D is less than 5.4 V for a continuous 25 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 25 s or more.

PID Item/Simulation Item Used In Diagnosis

PID/DATA monitor item table

Module	PIDs	Reference
Mazda M Hybrid battery	BATT_VOLT	(See PID/DATA MONITOR TABLE [Mazda M Hybrid BATTERY].)

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 DC-DC CONVERTER (Mazda M Hybrid) DTC

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

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [DC-DC CONVERTER (Mazda M Hybrid)].)

No

Go to the next step.

3

VERIFY INTEGRATED STARTER GENERATOR (ISG) DTC

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

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [INTEGRATED STARTER GENERATOR (ISG)].)

No

Go to the next step.

4

VERIFY PCM DTC

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

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-G (E))].)

(See DTC TABLE [PCM (SKYACTIV-X)].)

No

Go to the next step.

5

VERIFY Mazda M Hybrid BATTERY DTC

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

•  Are any DTCs other than DTC P1B05:00 displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [Mazda M Hybrid BATTERY].)

No

Go to the next step.

6

INSPECT BATTERY FOR MALFUNCTION

•  Inspect the applicable part.
(See BATTERY INSPECTION [(E)].)

•  Is the part normal?

Yes

Go to the next step.

No

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

(See BATTERY RECHARGING [(E)].)

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

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].)

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

7

INSPECT Mazda M Hybrid BATTERY CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(See CONNECTOR INSPECTION.)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

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

8

INSPECT Mazda M Hybrid BATTERY POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND

•  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:

―  BATT_VOLT

•  Does the PID value fluctuate when the Mazda M Hybrid battery connectors are shaken?

Yes

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

No

Go to the next step.

9

PERFORM REPLICATION TEST

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

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

•  Switch the ignition off.

•  Switch the ignition ON (engine off or on) and wait for 25 s or more.

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

•  Is DTC P1B05:00 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, then go to the next step.
(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 repair completion verification 2.

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.

•  Switch the ignition ON (engine off or on) and wait for 25 s or more.

•  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	VERIFY DC-DC CONVERTER (Mazda M Hybrid) DTC • Perform the DTC inspection for the DC-DC converter (Mazda M Hybrid). (See DTC INSPECTION.) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [DC-DC CONVERTER (Mazda M Hybrid)].)
2		No	Go to the next step.
3	VERIFY INTEGRATED STARTER GENERATOR (ISG) DTC • Perform the DTC inspection for the integrated starter generator (ISG). (See DTC INSPECTION.) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [INTEGRATED STARTER GENERATOR (ISG)].)
3		No	Go to the next step.
4	VERIFY PCM DTC • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-G (E))].) (See DTC TABLE [PCM (SKYACTIV-X)].)
4		No	Go to the next step.
5	VERIFY Mazda M Hybrid BATTERY DTC • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Are any DTCs other than DTC P1B05:00 displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [Mazda M Hybrid BATTERY].)
5		No	Go to the next step.
6	INSPECT BATTERY FOR MALFUNCTION • Inspect the applicable part. (See BATTERY INSPECTION [(E)].) • Is the part normal?	Yes	Go to the next step.
6		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (See BATTERY RECHARGING [(E)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
7	INSPECT Mazda M Hybrid BATTERY CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) • Are the connector and terminal normal?	Yes	Go to the next step.
7		No	Repair or replace the malfunctioning location and perform the repair completion verification 1.
8	INSPECT Mazda M Hybrid BATTERY POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • 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: ― BATT_VOLT • Does the PID value fluctuate when the Mazda M Hybrid battery connectors are shaken?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification 1.
8		No	Go to the next step.
9	PERFORM REPLICATION TEST • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Switch the ignition off. • Switch the ignition ON (engine off or on) and wait for 25 s or more. • Perform the DTC inspection for the Mazda M Hybrid battery. (See DTC INSPECTION.) • Is DTC P1B05:00 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, then go to the next step. (See Mazda M Hybrid BATTERY REMOVAL/INSTALLATION.)
9		No	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 2.
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. • Switch the ignition ON (engine off or on) and wait for 25 s or more. • 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.