FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Checking Control Module function






Checking control module function

Checking the control module








- Ignition off.
- Connect control module.
- Ignition on.
When the ignition is switched on the control module lights the ABS warning lamp. Check that the warning lamp goes out after approximately 2 seconds.
If the warning lamp goes out, the cause of the fault has been loose connections in the control module connector. Check control module connector for contact resistance and oxidation and remedy according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
A fault has been registered if the warning lamps do not go out. Try a new control module.

Select Continue when the fault has been remedied.

Continue - Verification

-------------------------------------------------

Verification




Verification

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




- Ignition off.
- Reconnect connectors, reinstall components.
- Ignition on.
When the ignition is switched on the control module lights the ABS warning lamp. Check that the warning lamp goes out after approximately 2 seconds.

Note! The warning lamp will not go out if a fault has been stored in the control module.





Does the ABS warning lamp light and go out shortly afterwards?

Yes - VERIFIED

No - VERIFICATION FAILED

------------------------

VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

-------------------------------------------------

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

------------------------

Attempt New Test - Checking the control module

-------------------------------------------------