Signal Missing
Signal missing
Checking vehicle speed signal
Hint: An alternative to the following method is to test drive the car.
- Ignition off.
- Raise car so that front wheels rotate freely.
- Engine idling.
- Go into scrolling value.
- Read off speed.
- Move the gear selector to position D so the front wheels begin to rotate.
Check that speed increases with engine speed (RPM).
Note! When the rear wheels are stationary and the front wheels rotate, diagnostic trouble codes (DTCs) may be stored in the ABS system. Erase any diagnostic trouble codes (DTCs) stored in the ABS system after fault-tracing.
Note! Ensure that the front wheels are not rotating when the gear selector is moved.
Does speed increase with engine speed (RPM)?
Yes - Intermittent fault
No - Connecting the breakout box
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 (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 vehicle speed sensor (VSS) circuit
FAULT FOUND - Checking vehicle speed sensor (VSS) circuit
No Fault Found - Checking vehicle speed sensor (VSS) circuit
FAULT-TRACING FAILED - Checking vehicle speed sensor (VSS) circuit
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Checking vehicle speed sensor (VSS) circuit
- Ignition off.
- Control module disconnected.
Connect an ohmmeter between #11 (#A11) and #12 (#A12) on the breakout box.
The ohmmeter should read 300-600 ohms.
OK - Checking signal cables
Not OK - Checking vehicle speed sensor (VSS) resistance
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Checking vehicle speed sensor (VSS) resistance
- Ignition off.
- Remove the air cleaner (ACL) housing to access the vehicle speed sensor (VSS) connector.
- Disconnect the vehicle speed sensor (VSS) connector.
Connect an ohmmeter between vehicle speed sensor (VSS) connector terminals 1 and 2 (vehicle speed sensor (VSS) side)
The ohmmeter should read approx. 300-600 ohms.
OK - Checking resistance in signal cable (+)
Not OK - Replacing component
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Replacing component
- Ignition off.
Try a new transmission speed sensor according to Replacing vehicle speed sensor (VSS) Replacing Vehicle Speed Sensor (VSS).
Select "Continue" when the fault has been repaired.
Continue - Verification
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Checking resistance in signal cable (+)
- Ignition off.
- Vehicle speed sensor (VSS) disconnected.
Connect an ohmmeter between vehicle speed sensor (VSS) connector terminals 1 and #11 (#A11) on the breakout box.
The ohmmeter should read approx. 0 ohms.
OK - Checking resistance in signal cable (-)
Not OK - Checking for an open-circuit
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Checking for an open-circuit
Check cable between vehicle speed sensor (VSS) connector terminal 1 and transmission control module (TCM) #A11 for an open-circuit 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 resistance in signal cable (-)
- Ignition off.
- Vehicle speed sensor (VSS) disconnected.
Connect an ohmmeter between vehicle speed sensor (VSS) connector terminals 2 and #12 (#A12) on the breakout box.
The ohmmeter should read approx. 0 ohms.
OK - Checking signal wiring resistance
Not OK - Checking for an open-circuit
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Checking for an open-circuit
Check cable between vehicle speed sensor (VSS) connector terminal 2 and transmission control module (TCM) #A12 for an open-circuit 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 wiring resistance
- Ignition off.
- Vehicle speed sensor (VSS) disconnected.
- Control module disconnected.
Connect an ohmmeter between #11 (#A11) and #12 (#A12) on the breakout box.
The ohmmeter should read infinite resistance.
OK - Checking for contact resistance and oxidation
Not OK - Checking for a short-circuit
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Checking for contact resistance and oxidation
- Ignition off.
The cause of the diagnostic trouble code (DTC) has been loose connections in the transmission control module (TCM) and vehicle speed sensor (VSS) 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.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Checking for a short-circuit
Check cable between vehicle speed sensor (VSS) connector terminal 1 and transmission control module (TCM) #A11 and cable between terminal 2 and transmission control module (TCM) #A12 for a short-circuit to each other.
Select "Continue" when the fault has been repaired.
Continue - Verification
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Checking signal cables
- Ignition off.
- Breakout box connected.
- Connect control module.
- Ignition on.
Connect a voltmeter between #11 (#A11) and #20 (#A20) on the breakout box.
The voltmeter should read approx. 2.5 V.
OK - Checking for contact resistance and oxidation
Low - Checking for a short-circuit
High - Checking for a short-circuit
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Checking for contact resistance and oxidation
- Ignition off.
The cause of the diagnostic trouble code (DTC) has been loose connections in the transmission control module (TCM) connector. Check transmission and transmission control module (TCM) connectors for contact resistance and oxidation and remedy 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 a short-circuit
Check cables between vehicle speed sensor (VSS) and transmission control module (TCM) #A11 and #A20 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 for a short-circuit
Check cables between vehicle speed sensor (VSS) and transmission control module (TCM) #A11 and #A20 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 - Verification
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied. Carry out the following.
Hint: An alternative to the following method is to drive the car on the road.
- Ignition off.
- Reconnect connectors, reinstall components etc.
- Raise car so that front wheels rotate freely.
- Engine idling.
Check that speed increases with engine speed (RPM).
Note! When the rear wheels are stationary and the front wheels rotate diagnostic trouble codes (DTCs) may can be stored in the ABS system. Erase any diagnostic trouble codes (DTCs) stored in the ABS system after fault-tracing.
Note! Ensure that the front wheels are not rotating when the gear shift lever is moved.
Does speed increase with engine speed (RPM)?
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 vehicle speed signal
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Intermittent fault
Signal missing. Intermittent fault
Intermittent fault
- Ignition off.
- Check vehicle speed sensor (VSS) and transmission control module (TCM) connectors for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
- Check cables between vehicle speed sensor (VSS) and transmission control module (TCM) #A11 and #A12 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 , intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and intermittent short-circuit to each other.
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 vehicle speed signal
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