Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
How To Proceed With Troubleshooting [05/2014 - ]
HINT:
- Use the following procedure to troubleshoot the lighting system.
- *: Use the Techstream.
- VEHICLE BROUGHT TO WORKSHOP
NEXT: Go to next step
- CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
NEXT: Go to next step
- INSPECT BATTERY VOLTAGE
- Measure the battery voltage with the ignition switch off.
Standard Voltage
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
NEXT: Go to next step
- Measure the battery voltage with the ignition switch off.
- CHECK FOR DTC*
- Check for DTCs. Refer to DTC CHECK / CLEAR [05/2014 - ] .
Result
Result Proceed to DTC is not output. A DTC is output. B B → Go to step 7
A: Go to next step
- Check for DTCs. Refer to DTC CHECK / CLEAR [05/2014 - ] .
- PROBLEM SYMPTOMS TABLE
- Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE [05/2014 - ] .
Result
Result Proceed to Fault is not listed in Problem Symptoms Table. A Fault is listed in Problem Symptoms Table. B B → Go to step 7
A: Go to next step
- Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE [05/2014 - ] .
- OVERALL ANALYSIS AND TROUBLESHOOTING*
- Data List / Active Test. Refer to DATA LIST / ACTIVE TEST [05/2014 - ]
- Terminals of ECU. Refer to TERMINALS OF ECU [05/2014 - ]
NEXT: Go to next step
- ADJUST, REPAIR OR REPLACE
NEXT: Go to next step
- CONFIRMATION TEST
NEXT → END
NO RELATED
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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.