RELAY (w/ PTC Heater) ON-VEHICLE INSPECTION


  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

    CAUTION:

    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

    Note


    • w/ Navigation System for HDD:

      After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.

    • When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

  2. REMOVE PTC HEATER RELAY (PTC HTR 1, PTC HTR 2, PTC HTR 3)

    A003CJ6E01
    Text in Illustration
    *1 PTC HTR 1 Relay
    *2 PTC HTR 2 Relay
    *3 PTC HTR 3 Relay

    1. Remove the 3 PTC heater relays from the engine room relay block.

  3. INSPECT PTC HEATER RELAY (PTC HTR 1, PTC HTR 2, PTC HTR 3)

    A003D8GE97

    1. Measure the resistance of the PTC heater relay.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 5 Battery voltage not applied to terminals 1 and 2 10 kΩ or higher
      Battery voltage applied to terminals 1 and 2 Below 1 Ω

      • If the result is not as specified, replace the relay.

  4. INSTALL PTC HEATER RELAY (PTC HTR 1, PTC HTR 2, PTC HTR 3)

    A003CJ6E01
    Text in Illustration
    *1 PTC HTR 1 Relay
    *2 PTC HTR 2 Relay
    *3 PTC HTR 3 Relay

    1. Install the 3 PTC heater relays to the engine room relay block.

  5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

    Note

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.