Nissan Altima 2007-2012 Service Manual: B210E starter relay

Description

Located in IPDM E/R, it runs the starter motor. The starter relay is turned ON by the BCM when the ignition switch is in START position. IPDM E/R transmits the starter relay ON signal to BCM via CAN communication.

DTC Logic

DTC DETECTION LOGIC

NOTE: • If DTC B210E is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-433, "DTC Logic".

• If DTC B210E is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-434, "DTC Logic".

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON under the following conditions and wait for at least 1 second.

- CVT selector lever is in the P or N position

- Do not depress the brake pedal

2. Check “Self diagnostic result” with CONSULT-III.

Is DTC detected? YES >> Refer to SEC-448, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1.CHECK STARTER RELAY OUTPUT SIGNAL

1. Turn ignition switch OFF.

2. Disconnect BCM harness connector.

3. Check voltage between BCM harness connector and ground.

Is the inspection result normal? YES >> GO TO 3

NO >> GO TO 2

2.CHECK STARTER RELAY OUTPUT SIGNAL CIRCUIT

1. Disconnect IPDM E/R harness connector.

2. Check continuity between IPDM E/R harness connector and BCM harness connector.

3. Check continuity between BCM harness connector and ground.

Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-48, "Removal and Installation".

NO >> Repair harness connector.

3.CHECK STARTER RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check voltage between IPDM E/R harness connector and ground.

Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-48, "Removal and Installation".

NO >> Check harness for open or short between IPDM E/R and battery.

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