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Faulty Signal. Permanent Fault






Faulty signal. Permanent fault

Checking the DSA warning lamp with the ignition off

Note! A diagnostic trouble code (DTC) may be stored if a DSA control module for model year 2003- is installed in a -2002 model year car. Check that the correct version of the control module is installed.




- Ignition off.
Check whether the ABS warning lamp lights.





Does the warning lamp light?

Yes - Checking for a short-circuit

No - Checking the other warning lamps in the combined instrument panel

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Checking for a short-circuit
Check the cable between combined instrument panel connector B terminal #22 and control module terminal #16. 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 remedied.

Continue - Verification

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Checking the other warning lamps in the combined instrument panel
Check that the other warning lamps in the combined instrument panel are functioning.

Are the other warning lamps functioning?

Yes - Checking the DSA warning lamp

No - Checking the combined instrument panel

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Checking the combined instrument panel
Check that the combined instrument panel is functioning.

Select Continue when the fault has been remedied.

Continue - FAULT FOUND

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Checking the DSA warning lamp




- Start the engine
- Activate the DSA warning lamp so that it flashes.
Check the function of the warning lamp.









Is the warning lamp lit continuously?

Yes - Checking for a short-circuit

No - Checking the signal from the combined instrument panel

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Checking for a short-circuit
Check the cable between the combined instrument panel connector B terminal #22 and control module terminal #16. Check 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 remedied.

Continue - Verification

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Checking the signal from the combined instrument panel








- Ignition off
- Expose the DSA control module
- Disconnect the control module
- Ignition on.
Connect a voltmeter between control module connector terminal #16 and ground.









The voltmeter should read approximately battery voltage.

OK - Checking the signal cable for a short-circuit to supply voltage

Not OK - Checking the resistance of the signal cable

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Checking the resistance of the signal cable












- Ignition off
- Expose the combined instrument panel
- Disconnect the combined instrument panel
- Control module disconnected
Connect an ohmmeter between combined instrument panel connector B terminal #22 and control module connector terminal #16.













The ohmmeter should read approximately 0 ohms.

OK - Checking the bulb

Not OK - Checking for an open-circuit

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Checking the bulb
Check that the bulb in the combined instrument panel is intact.

Is the bulb intact?

Yes - Replacing the component

No - Replacing the component

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Replacing the component
Try a new combined instrument panel.

Select Continue when the fault has been remedied.

Continue - Verification

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Replacing the component
Replace the bulb.

Select Continue when the fault has been remedied.

Continue - Verification

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Checking for an open-circuit
Check the cable between combined instrument panel connector B terminal #22 and control module terminal #16. Check 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 remedied.

Continue - Verification

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Checking the signal cable for a short-circuit to supply voltage












- Ignition off
- Expose the combined instrument panel
- Disconnect the combined instrument panel
- Control module disconnected
- Ignition on.
Connect a voltmeter between control module connector terminal #16 and ground.









The voltmeter should read approximately 0 V.

OK - Fault cause and checking for contact resistance and oxidation

Not OK - Checking for a short-circuit

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Fault cause and checking for contact resistance and oxidation
The cause of the diagnostic trouble code (DTC) was loose connections in the DSA control module connector and/or connector B for the combined instrument panel.
Check the connectors for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault. Remedy if necessary.

Select Continue when the fault has been remedied.

Continue - Verification

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Checking for a short-circuit
Check the cable between combined instrument panel connector B terminal #22 and control module terminal #16. 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 remedied.

Continue - Verification

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Verification




Verification

Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reconnect the connectors, reinstall components etc.
- Start the engine.
- Activate the DSA warning lamp so that it flashes.
Check the function of the warning lamp.









Is the function of the warning lamp 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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the DSA warning lamp with the ignition off

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