Inspection Procedure

HINT:

Troubleshoot in accordance with the chart below for each trouble symptom.

1. Check operation of MIL. 

   PREPARATION: 

   1. Connect the hand-held tester or OBD II scan tool to the DLC3.
   2. Turn ON the ignition switch and push the hand-held tester or the OBD II scan tool main switch ON.
   3. Switch the hand-held tester or the OBD II scan tool from the normal mode to the check mode.

   CHECK: 

   Check if the MIL blinks.

   OK: 

   The MIL blinks. 

   1. OK : Replace ECM (see  COMPONENTS  ).  
   2. NG : Go to next step. 
2. Check bulb of MIL. 

   See combination meter troubleshooting.

   1. NG : Repair or replace bulb or combination meter assembly. 
   2. OK : Go to next step. 
3. Check that ECM connectors are securely connected to ECM. 
   1. NG : Connect connector to ECM. 
   2. OK : Check for open circuit in wire harness between combination meter and ECM (see  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  in INTRODUCTION article).  
4. Check operation of MIL (see step   1 ). 
   1. OK : Replace ECM (see  COMPONENTS  ).  
   2. NG : Go to next step. 
5. Is DTC output? 

   CHECK: 

   Check the DTC. See DIAGNOSTIC TROUBLE CODE CHART .

   1. OK : Repair circuit indicated by output code. 
   2. NG : Check for short circuit in wire harness between DLC3 and ECM (see  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  in INTRODUCTION article).