Nissan Altima (L32) 2007-2012 Service Manual: B2615 blower relay circuit

11

Description

BCM controls the various electrical components and simultaneously supplies power according to the power supply position.

BCM checks the power supply position internally.

DTC Logic

DTC DETECTION 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.

- Release brake pedal.

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

Is DTC detected? YES >> Go to PCS-68, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1. CHECK BLOWER RELAY POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect blower relay.

3. Check voltage between blower relay harness connector and ground under the following conditions.

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

NO >> GO TO 2

2. CHECK BLOWER RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM harness connector.

3. Check continuity between blower relay harness connector (A) and BCM harness connector (B).

4. Check continuity between blower relay harness connector (A) and ground.

Is the inspection result normal? YES >> GO TO 6

NO >> Repair or replace harness.

3. CHECK BLOWER RELAY GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between blower relay harness connector and ground.

Is the inspection result normal? YES >> GO TO 4

NO >> Repair blower relay ground circuit.

4.CHECK BLOWER RELAY POWER SUPPLY CIRCUIT-2

Check voltage between blower relay harness connector and ground.

Is the inspection result normal? YES >> GO TO 5

NO >> Repair or replace harness.

5. CHECK BLOWER RELAY

Refer to PCS-70, "Component Inspection (Blower Relay)".

Is the inspection result normal? YES >> GO TO 6

NO >> Replace blower relay.

6. CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

>> Inspection End.

Component Inspection (Blower Relay)

1. CHECK BLOWER RELAY

1. Turn ignition switch OFF.

2. Remove blower relay.

3. Check the continuity between blower relay terminals under the following conditions.

Is the inspection result normal? YES >> Inspection End.

NO >> Replace blower relay.

    B2614 ACC relay circuit
    Description BCM controls the various electrical components and simultaneously supplies power according to the power supply position. BCM checks the power supply position internally. DTC Logic ...

    B2616 ignition relay circuit
    Description BCM controls the various electrical components and simultaneously supplies power according to the power supply position. BCM checks the power supply position internally. DTC Logic ...

    Other materials:

    P2138 APP Sensor
    Description The accelerator pedal position sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the ECM. Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometers which tr ...

    Compressor
    Removal and Installation for Compressor - QR25DE Models REMOVAL 1. Discharge the refrigerant. Refer to HA-24, "HFC-134a (R-134a) Service Procedure". 2. Remove the drive belt. Refer to EM-16, "Removal and Installation". 3. Remove the engine undercover. 4. Remove th ...

    S Terminal circuit
    Description The output voltage of the generator is controlled by the IC regulator at terminal “3” (S) detecting the input voltage. Terminal “3” circuit detects the battery voltage to adjust the generator output voltage with the IC regulator. Diagnosis Procedure 1.CHECK VOLTAGE REG ...