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Home >> Chevrolet >> 2003 >> Tracker 2D Utility, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 2.0L >> Self-Diagnostic System >> Diagnostic System Check - Engine Controls >> Diagnostic Procedures
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Diagnostic Procedures

  1. Install scan tool. Does the scan tool power-up? If yes, go to next step. If no, perform SCAN TOOL DOES NOT POWER UP under DATA LINK COMMUNICATIONS in appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
  2. Turn ignition on, with engine off. Attempt to establish communication with the PCM. Does scan tool communicate with PCM? If yes, go to next step. If no, perform SCAN TOOL DOES NOT COMMUNICATE WITH VCM/PCM in appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
  3. Attempt to start engine. Does engine start and idle? If yes, go to next step. If no, go to NO-START DIAGNOSIS in BASIC DIAGNOSTIC PROCEDURES - 2.0L & 2.5L TRACKER article.
  4. Select the DTC Information on scan tool. Does scan tool display any powertrain DTCs? If yes, go to next step. If no, go to step  7.
  5. Using scan tool, save or capture the Powertrain DTC Information, Store Information. When complete, go to next step.
  6. Does the scan tool display DTC P0601? If yes, go to DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683 OR P2610: CONTROL MODULE READ ONLY MEMORY . If no, see DIAGNOSTIC TROUBLE CODE DEFINITIONS  under DIAGNOSTIC TESTS.
  7. Is customer's concern related to the automatic transmission? If yes, diagnose transmission. See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS. If no, go to next step.
  8. Is customer's concern with Inspection/Maintenance (I/M) testing? If yes, go to INSPECTION/MAINTENANCE SYSTEM CHECK  under DRIVE CYCLES. If no, go to next step.
  9. Check for the following symptoms: Hard start, surges/chuggles, lack of power, sluggishness/sponginess, detonation/spark knock, hesitation, sag, stumble, cuts out, misses, poor fuel economy, poor fuel fill quality, rough idle, unstable idle, incorrect idle, stalling, dieseling, run-on, backfire, Malfunction Indicator Light (MIL) inoperative, or MIL always on. Did you find and correct the condition? If yes, system is okay. If no, problem is intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 2.0L & 2.5L TRACKER article.
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