Key-In-Ignition Input

The key-in-ignition input CKT 80 (LT GRN) is used in order to wake up the instrument cluster (IPC) when a key is inserted into the steering column lock cylinder (ignition switch). When the IPC wakes up, the IPC measures the key pellet resistance value on the ignition key resistor input CKT 1073 (WHT/BLK).