Checking the Ground Terminal, Brake Control Module

Checking the ground terminals, brake control module

Checking the ground terminals








- Ignition off
- Connect the breakout box
- Control module disconnected.
- Switch off all equipment that takes power from the battery (for example, courtesy lighting, radio etc.).
Check the resistance between the battery negative terminal and breakout box terminal #16 and between the battery negative terminal and breakout box terminal #46. The resistance must be 0 ohms.
Check the ground terminal 1/1 (battery negative terminal) if the resistance is incorrect. Check for an open-circuit and contact resistance.
Check the cable between ground terminal 31/95 (left-hand wheel arch) and brake control module terminals #16 and #46. Check for an open-circuit. Check for contact resistance.

Other information
- To connect the breakout box, see Connecting the breakout box, brake control module (BCM) Connecting the Breakout Box, Brake Control Module (BCM)
- For further information about the fuses and relays, see the Wiring Diagram.









Was a fault detected?

Yes - Verification

No - Fault-tracing information

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Verification

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








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Ignition on.
The ABS warning lamp lights when the ignition is switched on.
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 warning lamp go out after 2seconds?

Yes - Fault Found

No - 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 - FAULT-TRACING FAILED

No - Attempt New Test

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Attempt New Test - Checking the ground terminals

FAULT-TRACING FAILED - FAULT-TRACING FAILED

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