Complaint
ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist and ESP® trailer stabilization are unavailable. Also the
adaptive brake lights, Adaptive Brake Assist and/or ATTENTION ASSIST may be unavailable. The brake system continues to operate with normal effectiveness. The support functions listed may be unavailable, but are available again
after an ignition off/on cycle.
One or more of the faults listed under 'Control unit/fault code' for the accelerator pedal (B37) is logged in the PTCU
control unit (N127). Consequential faults may have been logged in the ESP control unit.
Cause
The fault entry may have been caused by resistance at contacts.
Remedy
The remedy refers only to the model series listed and is not compatible with other published TIPS documents for other
model series.
If all the test steps stored in XENTRY Diagnosis have been performed and no component faults were found, the following work must be carried out:
- Replace the connector/ feed line to the accelerator pedal sensor (B37) using the wiring harness repair kit (see parts
table).
Please ensure that the twisted lines are untwisted as little as possible.
Please do not replace any other components (e.g. accelerator pedal sensor).
