2007 Lexus LX 470FACTORY OEM SERVICE PROCEDURE

Inspection Procedure

  1. CHECK WARNING LIGHT 
    1. Check the warning lights other than the SLIP indicator light.

    OK: Go to step  3

    NG: Go to Next step 

  2. INSPECT RELAY (Marking: IG1 NO. 2) 
    1. Remove the IG1 NO. 2 relay from the cowl side junction block LH.
    2. Measure the resistance of the relay.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      1 - 2 10 kΩ or higher
      1 - 2 Below 1 Ω (when battery voltage is applied to terminals 3 and 4)

    NG: REPLACE RELAY 

    Fig 1: Identifying IG1 NO. 2 Relay Connector Terminals
    G05197666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: CHECK COMBINATION METER (COMBINATION METER CIRCUIT) 

  3. CHECK SLIP INDICATOR LIGHT 
    1. Check for open circuit in the combination meter circuit.

    NG: REPLACE COMBINATION METER 

    OK: Go to Next step 

  4. CHECK WIRE HARNESS (SKID CONTROL ECU ASSEMBLY - SLIP INDICATOR LIGHT) 

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE SKID CONTROL ECU ASSEMBLY 

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.