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

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Checking Electrical Function




Preliminary operation:
Checking function of interior central locking. Checking Function











Special tools


Commercially available tool
Multimeter e.g. Sun, DMM-5


Preparing test
1. Remove supply pump (M14/2). Service and Repair
2. Connect junction box with test cable harness in accordance with the wiring diagram.


Prerequisites for test
1. Battery voltage 11 - 14 V.






Test