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

Wiper and Washer Systems: Service Precautions

CAUTION:
- Disconnect the battery before removing and installing the GEM/CTM or its connectors. Failure to follow this caution will result in the GEM/CTM storing many erroneous DTCs and it may exhibit erratic operation after installation.
- Be careful when probing the central junction box, power distribution box or any connectors. Damage will result to the connector receptacle if the probe or terminal being used is too large.
- Electronic modules are sensitive to electrostatic discharges. If exposed to these charges, damage may result.