For 1990-2009 cars

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, ACCY or RUN), and the driver's door to control the key-in-ignition chime.

### DTC Parameters

• | Ignition in RUN position

• | Circuit 80 open

• | 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 poor connections at the ignition switch.

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