Faulty Signal

Faulty signal

Query

Question

Question

Does the car have a DSTC system?

Yes - DSTC

No - STC

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STC - Checking the connectors and cables

DSTC - DSTC

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Checking the connectors and cables
Check the relevant wheel sensor and ABS control module connectors for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the connectors and wiring insulation for damage.
Check that the wheel sensor cables are not too close to sources of interference.
Remedy as necessary.

Other information
- To connect the breakout box, see Connecting the ABS breakout box Pinout Values and Diagnostic Parameters.
- To disconnect the control module connector, see Control module (ABS), replacing Brake Control Module (BCM), Replacing.
- To check and replace the wheel sensors, see Wheel sensors, rear, replacing Wheel Sensor Rear, Replacing.
- For information about signals, see Signal specification, ABS control module Signal Specification.

Was a fault detected?

Yes - Verification

No - No Fault Found

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Verification

Verification

Verification

Hint: After the repair it is necessary to check that the fault has been rectified.

- Ignition off.
- Connect the connectors, install the components, etc.
- Ignition on.
- Check that the ABS warning lamp comes on and goes out after approximately 2 seconds. If the lamp does not go out, the fault is still present.
- Test-drive the car as described in Test Drive Form (ABS), description Test Drive Form (ABS), Description.
Check the ABS warning lamp during the test-drive. If the warning lamp comes on, return to the workshop and read off the diagnostic trouble codes.

Does the lamp go out and stay out?

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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the connectors and cables

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DSTC

Faulty signal

Checking the connectors and cables
Check the relevant wheel sensor and ABS control module connectors for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the connectors and wiring insulation for damage.
Check that the wheel sensor cables are not too close to sources of interference.
Remedy as necessary.

Other information
- To connect the breakout box, see Connecting the ABS/DSTC breakout box Pinout Values and Diagnostic Parameters.
- To disconnect the control module connector, see Replacing ABS / DSTC (dynamic stability and traction control) control module Replacing ABS / DSTC (Dynamic Stability and Traction Control) Control Module.
- To check and replace the wheel sensors, see Wheel sensor, front, replacing Wheel Sensor Front, Replacing.
- For information about signals, see Signal specification, ABS / DSTC (dynamic stability and traction control) control module Signal Specification.

Was a fault detected?

Yes - Verification

No - No Fault Found

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Verification

Verification

Verification

Hint: After the repair it is necessary to check that the fault has been rectified.

- Ignition off.
- Connect the connectors, install the components, etc.
- Ignition on.
- Check that the ABS warning lamp lights and goes out after approximately 2 seconds. If the lamp does not go out, the fault has not been rectified.
- Test-drive the car as described in Test driving Test Driving.
Check the ABS warning lamp during the test drive. If the warning lamp lights, return to the workshop and read the diagnostic trouble codes.