Keyless Entry: Description and Operation

DOOR LOCK SWITCHES
Battery is applied at all times to the Door Lock Switches, terminal "A". Ground is supplied to terminals "B" and "E" at RH Door Lock Switch. Ground is supplied to the LH Door Lock Switch terminals "B" and "E" through the RH Door Lock Switch on CKT 781 and CKT 780. During a Door Switch "LOCK" operation, voltage is applied to terminal "G" of the Passive Keyless Entry (PKE) Module Connector C1. This voltage will be applied from the LH Door Lock Switch when either the LH or RH Door Lock Switch is activated.

During and "UNLOCK" operation, the description is the same as above except voltage from the LH Door Lock Switch is applied to terminal "A" at the PKE Module Connector C1.

DOOR LOCK MOTORS
During a "LOCK" operation, activated by either a Door Lock Switch or the PKE Transmitter, battery voltage is applied to one side of both Door Lock Motors through the GRY (CKT 295) wires from the PKE Module. Ground is supplied to the other side of the Door Lock Motors from the PKE Module on the TAN (CKT 694) wires. During an "UNLOCK" operation, voltage and ground to the Door Lock Motors are reversed. The PKE Module will apply voltage to one side of both Door Lock Motors on the TAN (CKT 694) wires and supply ground to the other side of the motors on the GRY (CKT 295) wires. The voltages applied by the PKE Module to the Door Lock Motors are at the same time applied to the Central Control Module (CCM) so that the CCM will be able to determine an "ARM" or "DISARM" condition for theft deterrent (refer to Theft Deterrent System). Antitheft and Alarm Systems

PASSIVE KEYLESS ENTRY (PKE) MODULE
The Passive Keyless Entry (PKE) Module allows for door lock operation by using either a remote transmitter or the Door Lock Switches (refer to Theft Deterrent System for detailed system operation).