Removing Control Modules From Control Module Box
Images show model 170.435
1 Push locking slide (2) on connector for windshield wiper to side and pull connector off of multi-function control module (N10-3).
2 Fold locking tab (1) up and disconnect connector from control module (N10-3).
3 Unclip blower motor connection to control module box at connector (N10-3).
4 Press clamping spring (9) to side and remove multi-function control module (N10-3) from control module box.
NOTE: The engine control module (N3/4) and traction system control module (N47) are mounted on one plate (5) and always have to be removed together.
1 Unlock connectors (3) on engine control module (N3/4).
2 Pivot connectors (3) to side until they disconnect from the contact strip on the engine control module.
3 Pull locking slides on connectors (10) on traction system control module (N47) out to stop.
NOTE: The locking slides are located below the wire entrance.
4 Remove connectors (10) from control module.
5 Unscrew screw (7) and remove holder (5) from guides in control module box together with both control modules.
1 Disconnect connectors (8) from relay module (K40).
2 Press clamping spring (9) to side and remove relay module (K40) from control module box.