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:

    MOD system limitations
    WARNING Listed below are the system limitations for MOD. Failure to operate the vehicle in accordance with these system limitations could result in serious injury or death. Do not use the MOD system when towing a trailer. The system may not function properly. Excessive noise (for examp ...

    C1734 control unit
    Description An internal malfunction has been detected in the TPMS function of the BCM. DTC Logic NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.  Activate and display TPMS trans ...

    Both doors mirror defogger don't operate but rear window defogger operates
    Diagnosis Procedure 1. CHECK DOOR MIRROR DEFORGGER FUSE Check if the following fuse in fuse block (J/B) is blown. 2. CHECK DOOR MIRROR DEFORGGER CIRCUIT Turn ignition switch OFF. Disconnect the following harness connectors. Fuse block (J/B) connector M5 Door mirror LH D4 Door ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2020 Copyright www.nimainfo.com
    0.0247