Nissan Maxima Service and Repair Manual: B261A push-button ignition switch

Nissan Maxima Service and Repair Manual / Power outlet / Power control system / DTC/circuit diagnosis / B261A push-button ignition switch

Description

IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives push-button ignition switch status by hardwire input. BCM compares the 2 signals for mismatch.

DTC Logic

DTC DETECTION LOGIC

NOTE:

  • If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to PCS-44, "DTC Logic".
  • If DTC B261A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to PCS-45, "DTC Logic".

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.
  • CVT selector lever is in the P position
  • Do not depress brake pedal.
  1. Check "Self diagnostic result" with CONSULT.

Diagnosis Procedure

1. CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

Press push-button ignition switch and check if it turns to ON.

2. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

Nissan Maxima. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

  1. Turn ignition switch OFF.
  2. Disconnect push-button ignition switch.
  3. Check voltage between IPDM E/R harness connector and ground.

Nissan Maxima. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

3. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

  1. Disconnect IPDM E/R and BCM.
  2. Check continuity between IPDM E/R harness connector (A) and push-button ignition switch harness connector (B).
  3. Check continuity between IPDM E/R harness connector and ground.

Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

4. CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)

  1. Disconnect push-button ignition switch.
  2. Check voltage between BCM harness connector and ground.

Nissan Maxima. CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)

5. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

  1. Disconnect BCM and IPDM E/R.
  2. Check continuity between BCM harness connector and push-button ignition switch harness connector.
  3. Check continuity between BCM harness connector and ground.

Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

Nissan Maxima. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

    B2618 BCM
    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 ...

    Power supply and ground circuit
    BCM BCM : Diagnosis Procedure 1. CHECK FUSE AND FUSIBLE LINK Check if the following BCM fuses or fusible link are blown. 2. CHECK POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnec ...

    Other materials:

    B2191 difference of key
    Description Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed. Prohibits the start of engine when an unregistered ID of Intelligent Key is used. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATION PROCED ...

    Clip list
    Descriptions for Clips Replace any clips which are damaged during removal or installation. ...

    Intelligent key system/engine start function
    Wiring Diagram                     ...

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    Nissan Maxima Service and Repair Manual

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