Faulty Signal - Permanent Fault

ECM-9400 BRAKE PEDAL POSITION SENSOR, FAULTY SIGNAL
FAULTY SIGNAL - PERMANENT FAULT

Checking component and wiring



Check the brake pedal sensor resistance between # 1 and # 2, for resistance values see Component specifications. Specifications

Check brake pedal sensor installation, search for damage and check connections visually according to Checking Wiring and Terminals. Permanent Fault

Remedy as necessary.

Other information
- For information about signals, see Diagnostic Parameters and Pinout Values. Signal Description, ME7, B5XX4T


Verification



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

- Ignition off.
- Reinstall connectors, components etc.
- Ignition on.
- Read brake pedal movement by pressing down and releasing brake pedal.

The value is between 2.9-3.2 V when the brake pedal is unaffected and decreases when the brake pedal is depressed.

Do the movements correspond?
Yes - Testing Complete.
No - Continue below.


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.