Nissan Maxima Service and Repair Manual: P1805 brake switch

Description

Brake switch signal is applied to the ECM via the stop lamp switch when the brake pedal is depressed. This signal is used mainly to decrease the engine speed when the vehicle is being driver.

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON.
  2. Fully depress the brake pedal for at least 5 seconds.
  3. Erase the DTC.
  4. Check 1st trip DTC.

Diagnosis Procedure

1.CHECK STOP LAMP SWITCH CIRCUIT

  1. Turn ignition switch OFF.
  2. Check the stop lamp when depressing and releasing the brake pedal.

2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

Nissan Maxima. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

  1. Disconnect stop lamp switch harness connector.
  2. Check the voltage between stop lamp switch harness connector and ground.

Nissan Maxima. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

3.DETECT MALFUNCTIONING PART

Check the following.

  • Fuse block (J/B) connector E6
  • 10 A fuse (No. 7)
  • Harness for open or short between battery and stop lamp switch

4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

  1. Disconnect stop lamp switch harness connector.
  2. Disconnect ECM harness connector.
  3. Check the continuity between stop lamp switch harness connector and ECM harness connector.
  4. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

5.DETECT MALFUNCTIONING PART

Check the following.

  • Fuse block (J/B) connector E6
  • Junction block connectors E44, E45
  • Harness for open or short between ECM and stop lamp switch

6.CHECK STOP LAMP SWITC

7.CHECK INTERMITTENT INCIDENT

Component Inspection (Stop Lamp Switch)

1.CHECK STOP LAMP SWITCH-I

Nissan Maxima. CHECK STOP LAMP SWITCH-I

  1. Turn ignition switch OFF.
  2. Disconnect stop lamp switch harness connector.
  3. Check harness continuity between stop lamp switch terminals under the following conditions.

Nissan Maxima. CHECK STOP LAMP SWITCH-I

2.CHECK STOP LAMP SWITCH-II

Nissan Maxima. CHECK STOP LAMP SWITCH-II

  1. Adjust stop lamp switch installation. Refer to BR-18, "Removal and Installation".
  2. Check harness continuity between stop lamp switch terminals under the following conditions.

Nissan Maxima. CHECK STOP LAMP SWITCH-II

    P1801 vias control solenoid valve 2
    Description The VIAS control solenoid valve 2 cuts the intake manifold vacuum signal for power valve 2 control. It responds to ON/OFF signals from the ECM. When the solenoid is OFF, the vacuum ...

    P2096, P2097, P2098, P2099 A/F sensor 1
    Description The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a he ...

    Other materials:

    Front seat
    DRIVER SIDE DRIVER SIDE : Exploded View Driver Seat - Without Climate Controlled Seats Headrest Headrest holder (free) Headrest holder (locked) Seatback board Seatback board clip Seat cushion inner finisher inside (RH) Recline mechanism inner cover Seat cushion outer finis ...

    Front fog lamp
    System Diagram System Description BCM (Body Control Module) controls front fog lamp operation. IPDM E/R (Intelligent Power Distribution Module Engine Room) operates front fog lamp according to CAN communication signals from BCM. Combination meter operates front fog lamp indicator accor ...

    Hands-free phone system
    System Diagram System Description Refer to the Owner's Manual for Bluetooth telephone system operating instructions. NOTE: Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth telephone system. Bluetooth telephone system allows users ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0048