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On-Vehicle Inspection

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
  2. REMOVE SUSPENSION CONTROL RELAY (AHC) 
    1. Remove the suspension control relay from the engine room relay block.
  3. INSPECT SUSPENSION CONTROL RELAY 
    1. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

    STANDARD RESISTANCE

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

    If the result is not as specified, replace the suspension control relay.

    Fig 1: Inspecting Suspension Control Relay
    G05761509Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL SUSPENSION CONTROL RELAY (AHC) 
    1. Install the relay 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 (See INITIALIZATION ).