Checking the Park / Neutral Position (PNP) Switch
Checking the park / neutral position (PNP) switch
Reading off diagnostic trouble codes (DTCs)
Hint: If the starter motor does not run, the fault may be due to an internal fault in the gear-shift position sensor. In certain cases the transmission control module (TCM) has been unable to store diagnostic trouble codes (DTCs) because not all the conditions have been met.
- Ignition on or ignition switch position III for at least five seconds
- Read off diagnostic trouble codes (DTCs).
Fault trace any stored diagnostic trouble codes (DTCs) before beginning this fault-tracing. Use the VIDA symptom input and select the same symptom as for this fault-tracing.
Were diagnostic trouble codes (DTCs) stored in the transmission control module (TCM)?
Yes - DONE
No - Checking the park / neutral position (PNP) switch
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Checking the park / neutral position (PNP) switch
- Ignition off
- Gear selector in position D
- Try to start the car. It should not be possible to start the car
- Ignition off
- Gear selector in position P or N
- Try to start the car. It should now be possible to start the car.
Was the function OK?
Yes - No Fault Found
No - Checking the gear-shift position sensor
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Checking the gear-shift position sensor
- Ignition off
- Disconnect the transmission connector
- Connect an ohmmeter between terminals #6 and #7 on the transmission connector (transmission side)
- Ignition key in the radio position (I).
Press the "Shift-lock Override" button. Move the gear selector to all gear positions. Check the resistance.
The resistance should be approximately 0 ohms in positions P and N and infinite in all other positions.
Replace the gear-shift position sensor if the resistance is incorrect.
Note! With the ignition on and the transmission disconnected, the transmission control module (TCM) may store diagnostic trouble codes (DTCs). If the ignition has been on, erase any stored DTCs.
Other information:
- To disconnect the transmission connector, see Solenoid control system, replacing Service and Repair
- To replace the gear-shift position sensor, see Gear-shift position sensor, position .
Was the resistance OK?
Yes - Checking the wiring
No - Verification
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Checking the wiring
Check the cable between transmission connector terminal #7 and central electronic module (CEM) terminal #D9 (#B9). Check for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Check for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Other information:
- To disconnect the transmission connector, see Solenoid control system, replacing Service and Repair
Was a fault detected?
Yes - Verification
No - No Fault Found
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Gear shift sensor in position D.
- Try to start the engine. It should not now be possible to start the engine.
- Ignition off.
- Gear-shift position sensor in position P or N.
- Try to start the engine. It should now be possible to start the engine.
Was the function OK?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit fault-tracing
No - Attempt New Test
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Attempt New Test - Reading off diagnostic trouble codes (DTCs)
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