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 and repair workflow
    Work Flow OVERALL SEQUENCE DETAILED FLOW 1. GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). 2. CHECK DTC Check DTC. Perform the following procedure if DTC is di ...

    AV control unit
    Reference Value VALUES ON THE DIAGNOSIS TOOL CONSULT data monitor item TERMINAL LAYOUT PHYSICAL VALUES DTC Index SELF-DIAGNOSIS RESULTS DISPLAY ITEM ...

    Vertical synchronizing (VP) signal circuit
    Description In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizontal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images displayed with AV control unit, such as the image quality adjusting menu, ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2023 Copyright www.nimainfo.com
    0.0061