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Home >> Chevrolet >> 2000 >> Metro Base, 2D Hatchback >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 1.0L & 1.3L >> Diagnostic Tests >> DTC P1510: Control Module Long Term Memory Reset >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing OBD system check, go to next step.
  2. Start and operate engine for at least one minute. Disconnect IAT sensor harness connector. Observe MIL. Reconnect IAT sensor electrical connector. Turn ignition off. Wait for at least one minute. Turn ignition on, with engine off. Using scan tool, check for DTCs. If DTC P0113 is set, see DIAGNOSTIC AIDS . If DTC P0113 is not set, go to next step.
  3. Turn ignition off. Disconnect PCM 26-pin connector. Using DVOM, check voltage between ground and PCM 26-pin connector battery positive voltage circuit. See WIRING DIAGRAMS article. If battery voltage is present, go to step  5. If battery voltage is not present, go to next step.
  4. Check for open or short in battery positive voltage circuit between PCM and junction block located behind left side of instrument panel. Repair as necessary. After repairs, go to step  7. If circuit is okay, see DIAGNOSTIC AIDS .
  5. Check for poor connection at PCM. Repair as necessary. After repairs, go to step  7. If connection is okay, go to next step.
  6. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  7. After repairs, using scan tool, clear DTC information. Road test vehicle within freeze frame conditions that set DTC. Check for DTCs. If no DTCs are stored, repair is complete. If any DTCs are stored, diagnose DTC(s).
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