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)

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F5 Checking Receiver Module Ground Cable




- Switch off ignition.




- Disconnect the connector from the receiver module




- Connect an ohmmeter between ground and the cable harness 5-pin connector pos. 1.
The ohmmeter should show approx. 0 Ohms.

If value is OK:
- Continue to F6. F6 Checking Supply (30) to Receiver Module

If the reading is incorrect:
Open circuit or short circuit to supply in receiver module's ground cable between cable harness 5-pin connector pos. 1 and ground point left A post 31/6.
- Correct fault or replace receiver module ground cable.