LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2000 >> Tracker 4D Utility, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P1451: Barometric Pressure Sensor Performance >> Diagnostic Procedures
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing OBD system check, go to next step.
  2. Check for DTC P1408. If DTC P1408 is set, diagnose DTC. If DTC P1408 is not set, go to next step.
  3. Turn ignition on, with engine off. Using scan tool, perform clear information function. Operate vehicle within FREEZE FRAME conditions. Retrieve DTCs. If this DTC resets, go to next step. If this DTC does not reset, see DIAGNOSTIC AIDS .
  4. Turn ignition on, with engine off. Observe MAP sensor parameter on scan tool. If scan tool displays 100 kPa, go to next step. If scan tool does not display 100 kPa, see DIAGNOSTIC AIDS .
  5. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  6. After repairs, clear DTCs. Operate 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).
scientia non olet · About LEMON Manuals