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.

CAUTION: Ensure ignition is off before disconnecting connector at any component.

NOTE: When battery is disconnected, heating and A/C mode doors must be recalibrated. For recalibration of heating and A/C mode doors, 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: 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 Black 40-pin connectors. PCM connector C1 is the front (radiator side) connector and connector C2 is the rear (firewall side). See Figure .

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