HINT:

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

MIL TROUBSHOOTING

MIL does not light up	Start inspection from step 1 in case of using the hand-held tester and start from step 2 in case of not using the hand-held tester
MIL remains on	After inspection of step 3, start inspection from step 4 in case of using the hand-held tester and start from step 5 in case of not using the hand-held tester

Inspect diagnosis (normal mode, check mode) (See PRE-CHECK ).
1. OK : Check and replace ECM (See PROCEDURE ).
2. NG : Go to Next Step
Check MIL.
See combination meter troubleshooting. SeePROBLEM SYMPTOMS TABLE .
1. NG : Repair or replace bulb or combination meter assembly.
2. OK : Go to Next Step
Check that ECM connectors are securely connected to ECM.
1. NO : Connect connector to ECM.
2. YES : Check for open circuit in harness and connector between combination meter and ECM (See PROCEDURE ).
Check MIL (Go to step 2 ).
1. OK : Check and replace ECM (See PROCEDURE ).
2. NG : Go to Next Step
Is any DTC output?
Check DTC on DIAGNOSTIC TROUBLE CODE CHART .
1. YES : Repair circuit indicated by output code.
2. NO : Go to Next Step
Check IG1 relay (Marking: IG1) (See INSPECTION ).
1. NG : Replace IG1 relay.
2. OK : Check for short circuit in harness and connector between DLC3 and ECM (See PROCEDURE ).

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Inspection Procedure