Diagnostic Procedure

When performing vehicle diagnosis:

Ensure transmission fluid level is correct and fluid is neither contaminated nor aerated.
Ensure shift cable is properly adjusted. See appropriate TRANSMISSION SERVICING - A/T article in the AUTOMATIC TRANS SERVICING section.
Ensure battery is fully charged.
Perform visual inspection, ensuring all electrical connections at transmission, PCM, throttle position sensor, output speed sensor are clean and properly installed.
Retrieve DTC's. See RETRIEVING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM.
Repair DTC's in order displayed.
Always perform VERIFICATION TEST after repair is completed. See VERIFICATION TEST VER-1A under TESTING.

NOTE: Self-diagnostic tests are written specifically for Chrysler's Diagnostic Readout Box (DRB) scan tool. A generic scan tool may be used, but may not be capable of performing all necessary test functions.