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2.2L & 2.4L

NOTE: Check for applicable Technical Service Bulletins (TSBs) before proceeding. DO NOT perform the following procedure if driveability conditions are not present. DO NOT turn ignition off during the following procedure or clear DTCs unless instructed to do so.
  1. Connect scan tool. Turn ignition on, with engine off. If scan tool powers up, go to next step. If scan tool does not power up, go to DLC DIAGNOSIS OR NO SCAN TOOL DATA .
  2. If scan tool displays PCM data, go to next step. If scan tool does not display PCM data, go to DLC DIAGNOSIS OR NO SCAN TOOL DATA .
  3. Using scan tool, check for DTCs. If any LAST TEST FAIL, HISTORY or MIL request DTCs are present, go to next step. If no DTCs are present, go to step  5.
  4. Using scan tool, record FREEZE FRAME and FAILURE RECORDS information. Identify DTCs. See DIAGNOSTIC TROUBLE CODE (DTC) DEFINITION . After identification, diagnose DTCs. See DIAGNOSTIC TESTS in appropriate TESTS W/CODES article.
  5. Observe MIL. If MIL is illuminated, go to next step. If MIL is not illuminated, go to MIL INOPERATIVE .
  6. Using scan tool, command MIL off. If MIL turns off, go to next step. If MIL does not turn off, go to MIL ON STEADY .
  7. Attempt to start engine. If engine starts and continues to run, go to next step. If engine does not start, or starts and then stalls, go to NO START DIAGNOSIS in appropriate BASIC DIAGNOSTIC PROCEDURES article.
  8. Allow engine to idle. During engine warm-up, check ECT, TP, MAP, O2 sensors and IAC valve for proper operation. Compare actual scan tool data with typical scan tool data values. If values are within limits, see appropriate TROUBLE SHOOTING - NO CODES article. If values are not within limits, go to appropriate SYSTEM & COMPONENT TESTING article.
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