Lancia Ypsilon - ESP hazard warning light comes on | HELLA

Lancia

Ypsilon (843)

VIN: 3002025 - 3082107

All models with electronic
stability program (ESP)

Error code C 1131

ESP hazard warning light comes on

Whenever the above-mentioned error code is diagnosed in conjunction with an ESP control lamp that lights up, a possible cause could be the sensor responsible for brake fluid pressure. A fault with signal plausibility in pressure evaluation could, in such a case, lead to the entering of an error in the control unit.

As it is not possible to take measurements on the sensor itself, first of all check the power supply and the peripheral circumstances of the ESP system. If all the test results correspond to the set values, the pressure sensor is the probable cause and should be replaced.

Please note

The brake fluid pressure sensor is mounted inside the hydraulic unit (A) and cannot be replaced as a single item.

Therefore, in the event of any damage occurring, the complete hydraulic unit has to be replaced.