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

1 Communication With Scan Tool Is Not Possible

PROBLEM
No communications can be made with scan tool.

DESCRIPTION
When no communications can be made with the scan tool, it is likely that the diagnostic line is defective or that the transaxle control module is not functioning.

PROBABLE CAUSE OF TROUBLE
- Defective diagnostic line
- Defective transaxle control module power circuit
- Defective scan tool or scan tool harness
- Defective transaxle control module ground circuit
- Defective transaxle control module





DIAGNOSTIC CHART