Pretest Inspection & Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Following precautions and procedures must be followed:

Always follow air bag service precautions to avoid air bag deployment and possible personal injury. See AIR BAG SAFETY PRECAUTIONS .
After component replacement, ensure proper system operation. See SYSTEM OPERATION CHECK .
When testing voltage or continuity at ACM, use terminal side (not wire end) of connector. DO NOT probe wire through insulation.
Always check any Technical Service Bulletins (TSBs) that apply to vehicle.
Always use most current DRBIII diagnostic program cartridge available to prevent erroneous Diagnostic Trouble Codes (DTCs) or test results.
When using diagnostic tests, use DRBIII voltmeter unless instructed to use an external voltmeter or test light.
When performing electrical tests, prevent accidental shorting of terminals. Such shorts can damage fuses or components and may cause a second DTC to be set, making diagnosis of original problem more difficult.
Vehicle must have a fully-charged battery and functional charging system.
Each time a connector is disconnected, inspect it to ensure it is in good condition. Always focus on circuit being tested. Dirt, water and corrosion, are most common problems in connectors.
Always disconnect DRBIII after use.
Always disconnect DRBIII before charging battery.