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Home >> Chevrolet >> 2001 >> Tracker 2D Utility, 4WD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P0328: Knock Sensor Circuit - Open (2.0L) >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform diagnostic system check. See POWERTRAIN DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing diagnostic system check, go to next step.
  2. Using scan tool, clear DTC. Operate vehicle within FREEZE FRAME conditions. Recheck DTCs. If DTC resets, go to next step. If DTC does not reset, see DIAGNOSTIC AIDS  .
  3. Turn ignition off. Disconnect KS harness connector. Using a DVOM connected to ground, probe KS sensor harness connector terminal (Black wire). Turn ignition on, with engine off. If voltage reading is 4-5 volts, go to next step. If voltage reading is not 4-5 volts, go to step  6 .
  4. Turn ignition off. Reconnect KS harness connector. Using DVOM connected to ground, backprobe PCM harness connector C2 terminal No. 3 (Black wire). Start engine. Monitor output of KS signal with engine running. If voltage reading is 0.90-3.98 volts, see DIAGNOSTIC AIDS  . If voltage reading is not 0.90-3.98 volts, go to next step.
  5. Turn ignition off. Replace knock sensor. After replacing sensor, go to step  8 .
  6. Turn ignition off. Check for open in Black wire between KS and PCM. Ensure terminal connection at sensor is good. Repair as necessary. After repairs, go to step  8 . If circuit is okay, go to next step.
  7. Replace PCM. Perform PCM relearn procedure. See POWERTRAIN CONTROL MODULE  under PROGRAMMING. After replacing PCM, go to next step.
  8. Turn ignition on, with engine off. Using scan tool, clear DTCs. Operate vehicle within the conditions for running the DTC. See CODE ENABLE CRITERIA  . If DTC runs and passes, go to next step. If DTC resets, go to step  2 .
  9. Using scan tool, observe stored information and Capture Info. If scan tool displays any undiagnosed DTCs, diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If no other DTCs are displayed, system is okay.
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