Timer/Control Unit: Description and Operation
CIRCUIT DESCRIPTIONThe ETACM (Electronic Time and Alarm Control system control Module) controls the front wiper & washer, chime bell, keyless entry & burglar alarm, power door lock, courtesy & tail gate lamps, rear window defogger & amp, outside mirror defogger, door warning, seat belt warning, ignition key hole illumination and door key hole illumination.
The module is supplied battery voltage at all times from fuse 11. Fuse 9 supplies battery voltage to the module whenever the key is in ON. Fuse 19 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.