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HOMESERVICE MANUALSCHEVROLET2000CAVALIER BASE, 2D COUPE, AUTOMATIC, 4T40E/MN4REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS SELF-DIAGNOSTICS - 2.2L & 2.4LDIAGNOSTIC TESTSDTC P0705: TRANSMISSION RANGE SWITCH CIRCUITDIAGNOSTIC PROCEDURES
2000 Chevrolet Cavalier Base, 2D Coupe, Automatic, 4T40E/MN4

Diagnostic Procedures

2000 Chevrolet Cavalier Base, 2D Coupe, Automatic, 4T40E/MN4SECTION Diagnostic Procedures
  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  . After performing OBD system check, go to next step.
  2. Turn ignition on, with engine off. Observe scan tool and move gear selector through all gear selections. If INVALID is indicated in any range, go to next step. If INVALID is not indicated in any range, go to step  10 .
  3. Compare scan tool values with transmission range switch valid input combination values. See Fig 1 . If all circuits are indicated as HI, go to next step. If all circuits are not indicated as HI, go to step  5 .
  4. Check transmission range switch ground circuit for an open or poor connection. Repair as necessary. After repairs, go to step  10 . If circuit is okay, go to next step.
  5. Move gear selector through all ranges and note which circuit does not correspond with transmission range switch valid input combination values. See Fig 1 . Disconnect transmission range switch connector. Connect a jumper wire between ground and circuit with incorrect value. If jumpered circuit changes from a HI value to a LO value, go to step  8 . If jumpered circuit does not change from a HI value to a LO value, go to next step.
  6. Check affected circuit for an open or short to ground. Repair as necessary. After repairs, go to step  10 . If circuit is okay, go to next step.
  7. Check for poor connection at PCM connector. Repair as necessary. After repair is completed, go to step  10 . If circuit is okay, go to step  9 .
  8. Replace defective transmission range switch. After replacing switch, go to step  10 .
  9. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  10. Using scan tool, select CLEAR INFO or CLEAR DTCs function to clear DTCs. Start engine and allow it to idle. Ensure engine is at normal operating temperature. Operate vehicle within conditions required for setting this DTC. Select SPECIFIC DTC function then enter DTC which was set. If scan tool indicates TEST RAN AND PASSED, go to next step. If scan tool does not indicate TEST RAN AND PASSED, repeat step  2 .
  11. If any other DTCs are set, diagnose DTCs as necessary. If no other DTCs are set, no problem is indicated at this time.
Fig 1: Transaxle Range Switch Valid Input Combination Values
G95A35840Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.