Diagnostic Tests: Notes

CAUTION: When battery is disconnected, vehicle computer and energy systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

NOTE: Before diagnosing an engine performance problem, refer to SERVICE PRECAUTIONS under SELF-DIAGNOSTIC SYSTEM before proceeding.

NOTE: Before diagnosing an engine performance problem, refer to ON-BOARD DIAGNOSTICS under SELF-DIAGNOSTIC SYSTEM for diagnostic system functions, abilities and system diagnostic procedures.

NOTE: Before performing any testing procedures, check for any related Technical Service Bulletins (TSBs).

NOTE: Tests are arranged with Diagnostic Trouble Code (DTC) tests followed by No Trouble Code (NTC) tests, No Start (NS) tests and concluding with Verification (VER) tests.

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION .

NOTE: Powertrain Control Module (PCM) contains two 40-pin connectors. PCM connector C1 is a Black 40-pin connector and PCM connector C2 is a Gray 40-pin connector.

NOTE: Diagnostic tests are written specifically for Chrysler's Diagnostic Readout Box (DRBIII(R)) scan tool. A generic scan tool may not be capable of performing all necessary test functions.

NOTE: Some wiring circuits may contain a Positive Temperature Coefficient (PTC). The PTC is a specified amperage solid-state circuit breaker located in junction box behind driver's side of instrument panel, to the left of steering column. To reset PTC, all current must be removed from PTC for approximately 20 seconds.

NOTE: If Powertrain Control Module (PCM) is replaced, PCM must be properly programmed. See POWERTRAIN CONTROL MODULE PROGRAMMING under PROGRAMMING.