For 1990-2009 cars

### Circuit Description

When the ignition key is seated in the ignition switch, the key-in-ignition switch contacts close, grounding circuit 80. The body control module (BCM) monitors the state of the key-in-ignition switch, the state of the ignition switch (OFF, ACC, or RUN), and the driver's door to control the key-in-ignition chime.

### DTC Parameters

• | The ignition is in the RUN position.

• | Circuit 80 is open.

• | The conditions exist for 1 second.

### Diagnostic Aids

• | Check for a poor connection at the BCM. Inspect the harness connectors for backed out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals, and poor terminal-to-wire connection (terminal crimped over wire insulation and not conductors).

• | Inspect the wiring harness for damage. Check for broken or chaffed insulation.

• | Check for a poor connection at the ignition switch.

• | If a fault is suspected to be intermittent, wiggling the harness wiring may help in locating the fault.