Faulty Signal
Faulty signal
Checking gear-shift position sensor
- Ignition on.
- Select scrolling value.
- Read gear-shift position sensor position.
Move the gear selector to all shift positions a number of times, and repeatedly select the same position to check the operation of the gear-shift position sensor.
Are all values OK?
Yes - Intermittent fault
No - Checking gear-shift position sensor adjustment
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Checking gear-shift position sensor adjustment
- Ignition off.
Check according to Checking/adjusting gear-shift position sensor Adjustments that the gear-shift position sensor is correctly adjusted.
Is the gear-shift position sensor correctly adjusted?
Yes - Checking gear-shift position sensor ground terminal
No - Adjusting component
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Adjusting component
Adjust gear-shift position sensor according to Checking/adjusting gear-shift position sensor Adjustments.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Checking gear-shift position sensor ground terminal
Note! The gear-shift position sensor is grounded via its two retaining screws and its mating surface with the transmission.
- Ignition off.
Connect an ohmmeter between gear-shift position sensor casing and transmission housing.
The ohmmeter should read approx. 0 ohms.
OK - Connecting the test box
Connecting the test box
Not OK - Remedying gear-shift position sensor ground terminal
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Remedying gear-shift position sensor ground terminal
Remedy gear-shift position sensor ground terminal. Check gear-shift position sensor adjustment after corrective action according to Checking/adjusting gear-shift position sensor Adjustments.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Connecting the test box
Connecting the breakout box
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 981 3195 ADAPTOR 981 3195 Adaptor
Connecting the breakout box (Automatic transmission)
Is the breakout box connected to the control module?
Yes - CONNECTED
No - Connecting the breakout box
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Connecting the breakout box
Connecting the breakout box
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 981 3195 ADAPTOR 981 3195 Adaptor
Connecting the breakout box
Caution! The control module power supply must be disconnected when connecting or disconnecting the breakout box, otherwise it may be damaged.
- Ignition off
- Disconnect the transmission control module (TCM).
- Connect adapter 981 3195 ADAPTOR 981 3195 Adaptor to transmission control module (TCM) connector and connect breakout box 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 to adapter.
Note! Ensure that the adaptor is the right way round - with the breakout box cable harness outwards towards the fender.
Select "Continue"
Continue - DONE
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DONE - Checking ground terminals
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Checking ground terminals
- Ignition off.
- Control module disconnected.
- Turn of all equipment in the car that takes power from the battery (the interior lighting and radio etc).
Connect an ohmmeter between the battery negative terminal and:
#20 (#A20) on the breakout box
#29 (#A29) on the breakout box.
The ohmmeter should read approximately 0 ohms for all readings
OK - No Fault Found
Not OK - Checking for an open-circuit, contact resistance and oxidation
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Checking for an open-circuit, contact resistance and oxidation
Check ground terminals 31/32 and 31/33 and cables between ground terminals and control module #A20 and #A29 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault , and contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check ground lead between battery and bodywork for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault , and contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Verification
Verification
Hint: After carrying out the repair check that the fault has been remedied.
Carry out the following:
- Ignition off
- Turn of all equipment in the car that takes power from the battery (the interior lighting and radio etc).
- Control module disconnected.
Connect an ohmmeter between the battery negative terminal and:
#20 (#A20) on the breakout box
#29 (#A29) on the breakout box.
The ohmmeter should read approximately 0 ohms for all readings
OK - VERIFIED
Not OK - 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 be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.
Do you want to terminate fault-tracing at this time?
Yes - Exit fault-tracing
No - Attempt New Test
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Attempt New Test - Checking ground terminals
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CONNECTED - Checking signal cable resistance to ground
FAULT FOUND - Checking signal cable resistance to ground
FAULT-TRACING FAILED - Checking signal cable resistance to ground
No Fault Found - Checking signal cable resistance to ground
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Checking signal cable resistance to ground
- Ignition off.
- Disconnect the transmission connector.
- Test box connected
- Transmission control module (TCM) disconnected
Connect ohmmeter between test box #20 (#A20) and terminal:
- #3 (#A3) "A"
- #4 (#A4) "B"
- #5 (#A5) "C"
- #6 (#A6) "PA"
The ohmmeter should read infinite resistance.
OK - Checking signal cable resistance
Not OK - Checking for short-circuit to ground
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Checking for short-circuit to ground
Check cable between transmission connector (transmission control module (TCM) side) terminal:
- 1 and transmission control module (TCM) #3 "A"
- 2 and transmission control module (TCM) #4 "B"
- 3 and transmission control module (TCM) #5 "C"
- 4 and transmission control module (TCM) #6 "PA"
for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Checking signal cable resistance
- Ignition off.
- Disconnect transmission connector.
Connect an ohmmeter between transmission connector (transmission control module (TCM) side) terminal:
- 1 and test box #3 (#A3) "A"
- 2 and test box #4 (#A4) "B"
- 3 and test box #5 (#A5) "C"
- 4 and test box #6 (#A6) "PA"
The ohmmeter should read approx.0 ohms for all readings.
OK - Checking for short-circuit to supply voltage in signal cable
Not OK - Checking for an open-circuit
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Checking for an open-circuit
Check cable between transmission connector terminal:
- 1 and transmission control module (TCM) #3 "A"
- 2 and transmission control module (TCM) #4 "B"
- 3 and transmission control module (TCM) #5 "C"
- 4 and transmission control module (TCM) #6 "PA"
Check for open-circuits according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Checking for short-circuit to supply voltage in signal cable
- Ignition off.
- Connect transmission control module (TCM)
- Ignition on.
Connect an electrician's screwdriver (bulb at least 3 W) between test box #A20 (#A20) and:
- #3 (#A3) "A"
- #4 (#A4) "B"
- #5 (#A5) "C"
- #6 (#A6) "PA"
Did the bulb light?
Yes - Checking for short-circuit to supply voltage
No - Checking gear-shift position sensor operation
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Checking for short-circuit to supply voltage
Check cable between transmission connector terminal:
- 1 and transmission control module (TCM) #3 "A"
- 2 and transmission control module (TCM) #4 "B"
- 3 and transmission control module (TCM) #5 "C"
- 4 and transmission control module (TCM) #6 "PA"
Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Select "Continue" when the fault has been repaired.
Continue - Checking gear-shift position sensor
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Checking gear-shift position sensor operation
- Ignition off.
- Connect transmission connector.
- Connect transmission control module (TCM)
- Ignition on.
- Go into scrolling values.
- Read gear-shift position sensor position.
- Move the gear-shift position sensor to all shift positions a number of times, and repeatedly select the same position to check the operation of the gear-shift position sensor.
Are all values OK?
OK - Remedy contact resistance and oxidation
Not OK - Replacing component
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Remedy contact resistance and oxidation
- Ignition off.
The diagnostic trouble code (DTC) was caused by poor contact in the transmission control module (TCM) and transmission connectors.
Check connectors for contact resistance and oxidation and remedy in accordance with Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Replacing component
Try a new gear-shift position sensor according to Gear-shift position sensor, replacing Gear-Shift Position Sensor, Replacing.
Continue - Verification
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Checking gear-shift position sensor
Hint: The gear-shift position sensor can break if the signal cable has been short-circuited to supply voltage. Check the gear position sensor as follows.
- Ignition off.
- Connect transmission connector.
- Transmission control module (TCM) connected.
- Ignition on.
- Select scrolling values.
- Read gear-shift position sensor position.
- Move the gear selector to all shift positions a number of times, and repeatedly select the same position to check the operation of the gear-shift position sensor.
Are all values OK?
Yes - FAULT FOUND
No - Replacing component
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Verification
Verification
Hint: After repairs have been completed they must be verified as follows to ensure that the fault has been eliminated:
- Ignition off.
- Reinstall components, reconnect connectors etc.
- Ignition on.
- Go into scrolling value
- Read gear-shift position sensor position.
- Move the gear selector to all shift positions a number of times, and repeatedly select the same position to check the operation of the gear selector.
Are all values 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 - Checking gear-shift position sensor
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Intermittent fault
Faulty signal. Intermittent fault
Intermittent fault
- Ignition off.
- Check that the gear-shift position sensor is securely attached.
- Check control module and transmission connectors and gear-shift position sensor ground terminal for loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- Check the cables between the gear-shift position sensor and transmission control module (TCM) for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Select "Continue" when the fault has been repaired.
Continue - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - FAULT FOUND
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Attempt New Test - Checking gear-shift position sensor
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