Instrument Panel, Gauges and Warning Indicators: Service Precautions
^ Do not use a test lamp to diagnose the IPC electrical systems unless specifically instructed by the diagnostic procedure.^ Use the J 35616 Connector Test Adapter when diagnostic procedures require the probing of connectors.
^ The instrument panel cluster (IPC) will withstand normal current draws associated with vehicle operation.
^ Avoid overloading any circuit.
^ Do no ground or apply voltage to the IPC circuits unless instructed to do so when testing for opens or shorts.
^ Circuits may only be tested using a J 39200 Digital Multimeter or the equivalent.
^ Test the electrical circuits with a J 39200 DMM while the IPC connector remains connected to the IPC or the recommended breakout box.
^ Do not remove or apply voltage to the IPC with the key in the RUN position.
^ Always turn the key to the LOCK position before removing or connecting battery cables, fuses or connectors.
^ Follow the removal and replacement instructions whenever you perform an IPC removal or replacement.