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

Initial Inspection and Diagnostic Overview

Try the following checks before doing the Symptom Table.

1. Check the GAGES Fuse by observing the Instrument Cluster Indicators.

2. Check the Speedo (RWAL) Fuse.

3. If rear tire size or rear axle ratio has been changed since the vehicle was manufactured, refer to Test C. Test C: Programmer Clip Test

^ Do the tests listed for your symptom in the Symptom Table. Symptom Related Diagnostic Procedures