Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Inspection and Verification

1. Verify the customer concern by operating the system in question.




2. Visually inspect the components listed in the following chart:
3. Verify the following systems are working properly:
- Charging.
- Fuel.
- Cooling.
- Seat belt warning chime (GEM/CTM).
- Turn signals.
- Headlamps.
- Anti-theft.

4. If the system(s) is/are not working properly, refer to the appropriate section of the workshop manual.
5. If the concern remains after the inspection, connect the NGS Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the NGS menu. If the NGS does not communicate with the vehicle:
1. Check that the program card is properly installed.
2. Check the connections to the vehicle.
3. Check the ignition switch position.

6. If the NGS still does not communicate with the vehicle, refer to COMMUNICATIONS NETWORK SYMPTOM TROUBLESHOOTING CHART.
7. If the DTCs retrieved are related to the concern, go to the GEM/CTM Diagnostic Trouble Code (DTC) Index to continue diagnostics.
8. If no DTCs related to the concern are retrieved, proceed to the appropriate Symptom Troubleshooting Chart to continue diagnostics.