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

Trailer Lighting Module: Service and Repair




Electronic Control Unit (ECU) - Trailer

Service repair No - 86.55.07

Remove
1. Remove access panel from load space RH trim casing.







2. Remove 2 nuts securing trailer ECU.
3. Release and disconnect multiplug
4. Remove trailer ECU.


Refit
1. Position trailer ECU and connect multiplug.
2. Fit Trailer ECU and secure nuts.
3. Fit access panel
4. Initiate using TestBook/T4.