Faulty Signal

Faulty signal

Checking the function of the hydraulic valves








- Ignition off
- Check the brake control module (BCM) connector. Check for contact resistance and oxidation
- Reconnect the components, connectors etc.
- Ignition on.
Try to activate the hydraulic valves.
There should be a "ticking" noise.

Other information
- To disconnect the control module, see Connecting the breakout box, brake control module (BCM) Connecting the Breakout Box, Brake Control Module (BCM)
- Checking wiring and terminals Checking Wiring And Terminals





Can the valves be activated?

Yes - Fault Found

No - Replacing the control module and programming

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Replacing the control module and programming

Caution! A new control module is delivered without software. The control module must be programmed in order to function after replacement.

For further information about programming and replacing the control module, see Brake Control Module (BCM), replacing Brake Control Module (BCM), Replacing.






Continue - Fault Found

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