Checking the power supply
Remove the relay for unlocking 2/67 (RMI 20) from the integrated relay / fusebox in the cargo compartment.
Check the cable between terminal #2 the cable and connector and terminal #3 on the relay base. Check for an open-circuit.
If a fault is detected, check in particular the intermediate connector in the cable harness. Check for contact resistance and oxidation.
If no fault is detected, measure the resistance between terminal #4 in the relay base and ground.
In both cases the ohmmeter should read 0 ohms.
If the reading is not correct, replace the control module.
Other information
- To access and replace the rear electronic module, see Integrated relay/fuse box cargo compartment/rear electronic module, replacing
- See Checking wiring and terminals .