used for the chime warning system requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic
information.
DIAGNOSIS AND TESTING
CHIME WARNING SYSTEM
WARNING: To avoid personal injury or death, on vehicles equipped with airbags, disable the supplemental
restraint system before attempting any steering wheel, steering column, airbag, occupant classification sys-
tem, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect
and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge
before performing further diagnosis or service. This is the only sure way to disable the supplemental
restraint system. Failure to take the proper precautions could result in accidental airbag deployment.
The hard wired chime warning system inputs to the ElectroMechanical Instrument Cluster (EMIC), as well as other
hard wired circuits for this system may be diagnosed and tested using conventional diagnostic tools and procedures.
Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and con-
nector repair procedures, details of wire harness routing and retention, connector pin-out information and location
views for the various wire harness connectors, splices and grounds.
However, conventional diagnostic methods may not prove conclusive in the diagnosis of the EMIC, the Controller
Area Network (CAN) data bus, or the electronic message inputs used by the EMIC to provide chime warning system
service. The most reliable, efficient, and accurate means to diagnose the EMIC, the CAN data bus, and the elec-
tronic message inputs for the chime warning system requires the use of a diagnostic scan tool. Refer to the appro-
priate diagnostic information.
8B - 4
CHIME/BUZZER
ND