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Test B: Charging System Warning Indicator Is On With Engine Running (2.0L)

  1. Check The Fault Codes In PCM  - Connect Worldwide Diagnostic System (WDS) tester, or equivalent and retrieve Diagnostic Trouble Codes (DTCs). See RETRIEVING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Diagnose and repair any DTCs as necessary. If no DTCs are present, disconnect WDS and go to next step.
  2. Check Circuit (Gray/Orange)  - Turn ignition switch to OFF position. Disconnect generator 3-pin connector X-102a. See Figure. Turn ignition switch to ON position, engine off (KOEO). Using DVOM, measure voltage between generator connector terminal No. 1 (Gray/Orange wire) and ground. If zero volts exists, go to next step. If more than zero volts exist, go to step  4.
  3. Check Circuit (Gray/Orange) For An Open  - Turn ignition switch to OFF position. Disconnect Powertrain Control Module (PCM) harness connector, located on center of firewall. See Figure. Measure resistance of Gray/Orange wire between PCM harness connector terminal No. 59 and generator connector No. 1. See Figure and Figure . If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair Gray/Orange wire between PCM and generator. See WIRING DIAGRAMS . Retest system for normal operation.
  4. Check The Generator Output  - Reconnect PCM harness connector. Perform generator load test. See GENERATOR LOAD TEST  under ON-VEHICLE TESTING. If generator checks out okay, go to next step. If generator is faulty, replace generator. See GENERATOR  under REMOVAL & INSTALLATION. Retest for normal operation.
  5. Check For Correct PCM Operation  - Disconnect PCM harness connector. Inspect terminals for corrosion, pushed out pin or any physical damage. Repair terminals if necessary then reconnect PCM connector. Retest system. If problem still exists, replace PCM. For PCM removal and installation, see the following:
    • For 2002 models, see POWERTRAIN CONTROL MODULE under COMPUTERIZED ENGINE CONTROLS in REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE.
    • For 2003 models, see POWERTRAIN CONTROL MODULE under COMPUTERIZED ENGINE CONTROLS in REMOVAL & INSTALLATION article in ENGINE PERFORMANCE.
    • For 2004 models, see POWERTRAIN CONTROL MODULE under COMPUTERIZED ENGINE CONTROLS in REMOVAL & INSTALLATION article in ENGINE PERFORMANCE.
    If problem no longer exists, system is operating properly at this time. Problem may have been caused by a loose or corroded connector. Clear DTCs and repeat self-test.
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