Operation CHARM: Car repair manuals for everyone.

Timer/Control Unit: Description and Operation

The electronic time and alarm control module (ETACM) operates the intermittent wiper, the front washer, delay out room lamp, door warning, power window timer, power door lock, seat belt warning, ignition key hole illumination, door key hole illumination, rear window defogger, door mirror defogger and B/alarm.

The module is supplied battery voltage at all times from fuse 20. Fuse 8 supplies battery voltage to the module whenever the key is in ON. Fuse 10 supplies battery voltage to the module when the ignition is in ON or START. For details on the use of the various inputs and outputs, see the system indicated in the schematic diagram.