Nissan Maxima Service and Repair Manual: Steering switch

Description

When one of the steering wheel audio control switches is pushed, the resistance in steering switch circuit changes depending on which button is pushed.

Diagnosis Procedure

1.CHECK STEERING SWITCH RESISTANCE

Nissan Maxima. CHECK STEERING SWITCH RESISTANCE

  1. Disconnect steering switch connector M88.
  2. Check resistance between steering switch connector terminals.

Nissan Maxima. CHECK STEERING SWITCH RESISTANCE

2.CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND BLUETOOTH CONTROL UNIT

  1. Turn ignition switch OFF.
  2. Disconnect Bluetooth control unit connector B126 and combination switch (spiral cable) connector M30
  3. Check continuity between Bluetooth control unit harness connector B126 and combination switch (spiral cable) harness connector M30.
  4. Check continuity between Bluetooth control unit connector B126 and ground.

Nissan Maxima. CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND BLUETOOTH CONTROL UNIT

Nissan Maxima. CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND BLUETOOTH CONTROL UNIT

3.CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AUDIO UNIT

  1. Disconnect audio unit connector M147.
  2. Check continuity between audio unit harness connector M147 and combination switch (spiral cable) harness connector M30.
  3. Check continuity between audio unit connector M147 and ground.

 Nissan Maxima. CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AUDIO UNIT

 Nissan Maxima. CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AUDIO UNIT

4.COMBINATION SWITCH (SPIRAL CABLE) CHECK

Nissan Maxima. .COMBINATION SWITCH (SPIRAL CABLE) CHECK

  1. Check continuity between combination switch (spiral cable) harness connector M30 (A) and M88 (B).

Nissan Maxima. .COMBINATION SWITCH (SPIRAL CABLE) CHECK

5.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND AUDIO UNIT

  1. Disconnect audio unit connector M133.
  2. Check continuity between Bluetooth control unit harness connector B126 and audio unit harness connector M133. 
  3. Check continuity between Bluetooth control unit connector B126 and ground.

Nissan Maxima. CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND AUDIO UNIT

Nissan Maxima. CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND AUDIO UNIT

6.CHECK AUDIO UNIT VOLTAGE

  1. Connect audio unit harness connector M133 and Bluetooth control unit harness connector B126.
  2. Turn ignition switch ON.
  3. Check voltage between audio unit harness connector M133 terminals.

Nissan Maxima. .CHECK AUDIO UNIT VOLTAGE

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