Nissan Maxima Service and Repair Manual: Power supply and ground circuit

CLIMATE CONTROLLED SEAT CONTROL UNIT

CLIMATE CONTROLLED SEAT CONTROL UNIT : Diagnosis Procedure

Regarding Wiring Diagram information, refer to SE-44, "Wiring Diagram".

1.CHECK FUSES

2.CHECK BATTERY POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect climate controlled seat control unit connector B217.
  3. Check voltage between climate controlled seat control unit connector B217 terminal 29 and ground.

 

3.CHECK IGNITION POWER SUPPLY CIRCUIT

  1. Disconnect climate controlled seat control unit connector B216.
  2. Check voltage between climate controlled seat control unit connector B216 terminal 21 and ground.

 

4.CHECK GROUND CIRCUIT

  1. Turn ignition switch OFF.
  2. Check continuity between climate controlled seat control unit connector B217 terminal 30 and ground.

5.CHECK CLIMATE CONTROLLED SEAT RELAY

Perform the climate controlled seat relay component inspection. Refer to SE-10, "CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection (Climate Controlled Seat Relay)".

6.CHECK CIRCUIT BREAKER POWER SUPPLY CIRCUIT

  1. Disconnect the circuit breaker connector M84.
  2. Check voltage between circuit breaker connector M84 terminal 1 and ground.

7.CHECK BATTERY POWER SUPPLY CIRCUIT FOR OPEN

Check continuity between circuit breaker connector M84 (A) terminal 2 and climate controlled seat control unit connector B217 (B) terminal 29.

8.CHECK CLIMATE CONTROLLED SEAT RELAY BATTERY POWER SUPPLY CIRCUIT

  1. Disconnect climate controlled seat relay connector.
  2. Check voltage between climate controlled seat relay connector M58 terminal 3 and ground.

9.CHECK CLIMATE CONTROLLED SEAT RELAY IGNITION POWER SUPPLY CIRCUIT

Check voltage between climate controlled seat relay connector M58 terminal 2 and ground.

10.CHECK IGNITION POWER SUPPLY CIRCUIT FOR OPEN

Check continuity between climate controlled seat relay connector M58 (A) terminal 5 and climate controlled seat control unit connector B216 (B) terminal 21.

11.CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT

Check continuity between climate controlled seat relay connector M58 terminal 1 and ground.

CLIMATE CONTROLLED SEAT CONTROL UNIT : Component Inspection (Climate Controlled Seat Relay)

1.CHECK CLIMATE CONTROLLED SEAT RELAY

  1. Apply battery voltage between terminals 2 and 1 of the climate controlled seat relay. CAUTION: Connect a fuse between the terminals when applying battery voltage.
  2. Check continuity between climate controlled seat relay terminals 5 and 3.

    DTC/circuit diagnosis
    ...

    Climate controlled seat blower motor
    Description Sends airflow to the seat cushion and seatback. Component Function Check 1.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR FUNCTION Turn the climate controlled seat switch to the H (Heat) L ...

    Other materials:

    Clip list
    Descriptions for Clips Replace any clips which are damaged during removal or installation.       ...

    Engine coolant temperature gauge
    The gauge indicates the engine coolant temperature. The engine coolant temperature is within the normal range 1 when the gauge needle points within the zone shown in the illustration. The engine coolant temperature varies with the outside air temperature and driving conditions. CAUTION ...

    Diagnosis system (TCM)
    CONSULT Function FUNCTION CONSULT can display each diagnostic item using the diagnostic test modes shown following. WORK SUPPORT MODE Display Item List Engine Brake Adjustment CAUTION: Mode of "+1""0""−1""−2""OFF" can be selected by touching "UP"or "DOWN" on CONSULT screen ...

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    Nissan Maxima Service and Repair Manual

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