Nissan Maxima Service and Repair Manual: B2602 shift position

Description

BCM confirms the shift position with the following 2 signals.

  •  CVT selector lever

  •  Speed signal from meter

DTC Logic

DTC DETECTION LOGIC

NOTE:

  • If DTC B2602 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-29, "DTC Logic".

  • If DTC B2602 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-30, "DTC Logic".

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Start the engine under the following conditions and wait for at least 10 seconds.

    •  CVT selector lever is in the P or N position

    •  Depress the brake pedal.

  2.  Drive the vehicle for at least 10 seconds at a speed greater than 4 km/h (2 MPH).

  3.  Check "Self diagnostic result" with CONSULT.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to SEC-147, "Wiring Diagram" or SEC-128, "Wiring Diagram".

1.CHECK DTC WITH "COMBINATION METER"

Check "Self diagnostic result" with CONSULT. Refer to PCS-27, "DTC Index".

2.CHECK CVT SHIFT SELECTOR POWER SUPPLY

  1.  Turn ignition switch to ACC.

  2.  Disconnect CVT shift selector harness connector.

  3.  Check voltage between CVT shift selector harness connector M78 terminal 8 and ground.

3.CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT

  1.  Disconnect BCM harness connector.

  2.  Check continuity between BCM harness connector M19 (A) terminal 84 and CVT shift selector harness connector M78 (B) terminal 8.

3. Check continuity between BCM harness connector M19 (A) terminal 84 and ground.

4.CHECK CVT SHIFT SELECTOR CIRCUIT

  1.  Disconnect BCM harness connector.

  2.  Check continuity between CVT shift selector harness connector M78 (B) terminal 9 and BCM harness connector M19 (A) terminal 87.

3. Check continuity between BCM harness connector M19 (A) terminal 87 and ground.

5.CHECK CVT SHIFT SELECTOR

Refer to SEC-52, "Component Inspection".

6.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

 Inspection End.

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