Inspection Procedure

HINT:

Troubleshoot each trouble symptom in accordance with the chart below.

1. CLEAR DTC 
   1. Connect the hand-held tester or the OBD II scan tool to the DLC 3.
   2. Turn the power switch ON (IG).
   3. Turn the hand-held tester or the OBD II scan tool ON.
   4. Read DTCs (See DTC CHECK/CLEAR  ).
   5. Clear the DTCs (See DTC CHECK/CLEAR  ).
   6. Check that MIL is not illuminated.

   Standard: MIL is not illuminated. 

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

   NG: Go To Next Step 

2. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS) 
   Fig 1: Disconnecting E6 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Disconnect the E6 ECM connector.
   2. Turn the power switch ON (IG).
   3. Check that MIL is not illuminated.

      Standard: MIL is not illuminated. 

   4. Reconnect the ECM connector.

   OK: REPLACE ECM (See  ENGINE CONTROL SYSTEM  ) 

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

3. CHECK THAT MIL IS ILLUMINATED 
   1. Check that MIL is illuminated when the power switch is turned ON (IG).

   Standard: MIL is illuminated. 

   OK: SYSTEM OK 

   NG: Go To Next Step 

4. INSPECT COMBINATION METER ECU (MIL CIRCUIT) 
   1. See the combination meter troubleshooting PROBLEM SYMPTOM TABLE .

      NG: REPAIR OR REPLACE BULB OR COMBINATION METER ASSEMBLY 

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