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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 P0705: Transmission Range Switch >> 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. Apply parking brake. Using scan tool, monitor transmission range switch status with transmission in Park. If scan tool shows that transmission is in Park, go to next step. If scan tool does not show than transmission is in Park, go to step  9 .
  3. Shift transmission to Reverse position. Monitor transmission range switch status on scan tool with transmission in Reverse. If scan tool shows that transmission is in Reverse, go to next step. If scan tool does not show transmission is in Reverse, go to step  9 .
  4. Shift transmission to Neutral position. Monitor transmission range switch status on scan tool with transmission in Neutral. If scan tool shows that transmission is in Neutral, go to next step. If scan tool does not show that transmission is in Neutral, go to step  9 .
  5. Shift transmission to Drive position. Monitor transmission range switch status on scan tool with transmission in Drive. If scan tool shows that transmission is in Drive, go to next step. If scan tool does not show that transmission is in Drive, go to step  9 .
  6. Shift transmission to 2nd gear position. Monitor transmission range switch status on scan tool with transmission in 2nd gear. If scan tool shows that transmission is in 2nd gear, go to next step. If scan tool does not show that transmission is in 2nd gear, go to step  9 .
  7. Shift transmission to Low position. Monitor transmission range switch status on scan tool with transmission in Low. If scan tool shows that transmission is in Low, go to next step. If scan tool does not show that transmission is in Low, go to step  9 .
  8. Problem is intermittent. Check for out of adjustment transmission range switch or switch malfunction. Check for faulty electrical circuits. If a problem is found, repair as necessary. After repairs or if no problem is found, go to step  14 .
  9. Turn ignition switch to LOCK position. Disconnect PCM harness connector C3. Turn ignition switch on. Shift transmission to the gear position that failed. Check voltage at PCM harness connector terminal that failed the functional test. If voltage reading is 10-14 volts, go to next step. If voltage reading is not 10-14 volts, go to step  11 .
  10. Replace PCM. Perform PCM relearn procedure. See POWERTRAIN CONTROL MODULE  under PROGRAMMING. After replacing PCM, go to next step.
  11. Turn ignition switch to LOCK position. Disconnect transmission range switch harness connector. Check resistance between the failed PCM harness connector terminals and corresponding transmission range switch harness connector terminals. If resistance is within 2 ohms, go to next step. If resistance is not within 2 ohms, go to step  13 .
  12. Check transmission range switch for proper alignment. If alignment is okay, replace transmission range switch. After replacing range switch, go to step  14 .
  13. Repair open or high resistance in circuit between transmission range switch and PCM. After repairs, go to next step.
  14. Turn ignition switch to LOCK position. Reconnect any disconnected connector(s). Clear DTCs. Operate vehicle within FREEZE FRAME conditions that set DTC. Check for DTCs. If no DTCs are stored, go to next step. If any DTCs are stored, diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  .
  15. 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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