Self-Diagnostic System: Precautions

WARNING: This page is about a different car, the 1996 Eagle Vision, 1996 Dodge Intrepid, 1996 Chrysler New Yorker, 1996 Chrysler LHS, and 1996 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.

Before proceeding with diagnosis, observe following precautions.

Ensure battery is fully charged and charging system is functional.
Probe PCM connector from pin side. DO NOT backprobe PCM connector or probe wires through insulation.
DO NOT cause short circuits when performing electrical tests. This will set additional DTCs, making diagnosis of original problem more difficult.
DO NOT use a test light in place of a voltmeter.
Always begin repair with lowest DTC number (MIL) or first DTC displayed (scan tool).
Always perform verification test after repairs are made.
Always disconnect scan tool after use.
Always disconnect scan tool before charging battery.