Inspection Procedure

HINT:

Troubleshoot each trouble symptom in accordance with the chart below.

1. CLEAR DTC (See  DTC CHECK/CLEAR   ) 
   1. Connect the hand-held tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
   2. Turn the ignition switch ON and turn the hand-held tester ON.
   3. Read the DTC.
   4. Clear the DTC.
   5. Check that the MIL is not illuminated.

   OK: MIL is not illuminated. 

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

   NG: Go to next step 

2. CHECK WIRE HARNESS (CHECK FOR SHORT IN WIRE HARNESS) 
   1. Disconnect the E2 ECM connector.
   2. Turn the ignition switch ON.
   3. Check that the MIL is not illuminated.

   OK: MIL is not illuminated. 

   Fig 1: Disconnecting E2 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: REPLACE ECM (See  REPLACEMENT  ) 

   NG: CHECK AND REPAIR HARNESS AND CONNECTOR 

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

   OK: MIL is illuminated. 

   OK: SYSTEM OK 

   NG: Go to next step 

4. INSPECT COMBINATION METER ASSY (MIL CIRCUIT) 
   1. See PRECAUTION for combination meter troubleshooting.

   NG: REPAIR OR REPLACE BULB OR COMBINATION METER ASSEMBLY 

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