Inspection Procedure

HINT:

Troubleshoot each trouble symptom in accordance with MIL CIRCUIT  .

1. CLEAR DTC 
   1. Connect the hand-held tester to the DLC 3.
   2. Turn the ignition switch to ON and turn the hand-held tester ON.
   3. Read the DTC (See DTC CHECK/CLEAR ).
   4. Clear the DTC (See DTC CHECK/CLEAR ).
   5. Check that MIL is not illuminated.

      Standard: MIL is not illuminated 

   OK: REPAIR CIRCUIT INDICATED BY OUTPUT DTC (See  DIAGNOSTIC TROUBLE CODE CHART  ) 

   NG: Go to next step. 

2. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS) 
   1. Disconnect the E9 ECM connector.
   2. Turn the ignition switch to ON.
   3. Check that MIL is not illuminated.

      Standard: MIL is not illuminated 

   4. Reconnect the ECM connector.
      Fig 1: Checking Harness And Connector (Check For Short In Wire Harness)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: REPLACE ECM (See  REPLACEMENT  ) 

   NG: CHECK AND REPAIR HARNESS AND CONNECTOR (COMBINATION METER - ECM) 

3. CHECK MIL 
   1. Check that MIL lights up when turning the ignition switch ON.

      OK: Standard: MIL lights up 

   OK: SYSTEM OK 

   NG: Go to next step. 

4. INSPECT COMBINATION METER 
   1. See the combination meter troubleshooting in PROBLEM SYMPTOMS TABLE .

   OK: REPAIR OR REPLACE BULB OR COMBINATION METER 

   NG: CHECK AND REPAIR HARNESS AND CONNECTOR (COMBINATION METER - ECM)