Nissan Maxima Service and Repair Manual: B2553 ignition relay

Description

BCM turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned ON.

  • Ignition relay-1 (inside IPDM E/R)
  • Ignition relay-2 (inside fuse block (J/B))
  • Front blower motor relay

BCM checks any ignition relay ON request for consistency with the actual ignition relay operation status.

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. 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 2 seconds.
  • CVT selector lever is in the P or N position.
  • Release brake pedal.
  1. Check "Self diagnostic result" with CONSULT.

Diagnosis Procedure

1. CHECK IGNITION RELAY-2 FEEDBACK INPUT SIGNAL

Nissan Maxima. CHECK IGNITION RELAY-2 FEEDBACK INPUT SIGNAL

Check voltage between BCM harness connector and ground under the following conditions.

Nissan Maxima. CHECK IGNITION RELAY-2 FEEDBACK INPUT SIGNAL

2. CHECK IGNITION RELAY-2 FEEDBACK CIRCUIT

Nissan Maxima. CHECK IGNITION RELAY-2 FEEDBACK CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect BCM and fuse block (J/B).
  3. Check continuity between BCM harness connector (A) and fuse block (J/B) harness connector (B).

Nissan Maxima. CHECK IGNITION RELAY-2 FEEDBACK CIRCUIT

Nissan Maxima. CHECK IGNITION RELAY-2 FEEDBACK CIRCUIT

  1. Check continuity between BCM harness connector and ground.

Nissan Maxima. CHECK IGNITION RELAY-2 FEEDBACK CIRCUIT

3. CHECK INTERMITTENT INCIDENT

    U1010 control unit (CAN)
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1. REPLACE BCM When DTC U1010 is detected, replace BCM. ...

    B260A ignition relay
    Description BCM turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned ON. Ignition relay-1 (inside IPDM E/R) Ignition relay-2 (inside fuse bl ...

    Other materials:

    Diagnosis system (HVAC)
    CONSULT Function CONSULT can display each diagnosis item using the diagnosis test modes as shown. CONSULT application items SELF DIAGNOSTIC RESULT Display Item List *: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload sensor, ...

    Door locks/unlocks precaution
    Do not push the door handle request switch with the Intelligent Key held in your hand as illustrated. The close distance to the door handle will cause the Intelligent Key system to have difficulty recognizing that the Intelligent Key is outside the vehicle. After locking with the ...

    Remote keyless entry receiver
    Removal and Installation REMOVAL Remove glove box assembly. Refer to IP-20, "Removal and Installation". Disconnect the harness connector from the remote keyless entry receiver (1). Remove the screw (a) and remote keyless entry receiver (1). INSTALLATION Installation ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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