Inspection Procedure

HINT:

Troubleshoot each symptom in accordance with the table below.

1. CLEAR DTC 
   1. Connect the hand-held tester or the OBD II scan tool to the DLC 3.
   2. Turn the ignition switch to ON and turn the hand-held tester or the OBD II scan tool ON.
   3. Read the DTC (see DTC CHECK/CLEAR  ).
   4. Clear the DTC (see DTC CHECK/CLEAR  ).
   5. Check that MIL is not illuminated.
   1. 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 E6 ECM connector.
   2. Turn the ignition switch to ON.
   3. Check that MIL is not illuminated.
      1. Standard: MIL is not illuminated 
   4. Reconnect the ECM connector.

   OK: REPLACE ECM (See  REPLACEMENT  ) 

   Fig 1: Disconnecting E6 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

3. CHECK THAT MIL IS ILLUMINATED 
   1. Check that the MIL is illuminated when turning the ignition switch to ON.

      Standard: MIL is illuminated 

      OK: SYSTEM OK 

      NG: GO TO NEXT STEP 

4. INSPECT COMBINATION METER ASSY (MIL CIRCUIT) 
   1. See the combination meter troubleshooting procedure on PROBLEM SYMPTOMS TABLE .

      NG: REPAIR OR REPLACE BULB OR COMBINATION METER ASSEMBLY 

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