Short guide: ABS/ESP — pump, communication loss and warning lamp
Guía de una avería documentada. La fecha indica su incorporación a nuestra web.
Symptoms, external checks and data to gather to assess an ABS/ESP unit before sending.
Qué ocurre
ABS/ESP warning lamp permanently on; stored fault messages; ABS/ESP functions disabled; possible pump noise or continuous running.
Qué conviene comprobar
Visual inspection for leaks, hydraulic damage and connector condition; check battery voltage and fuses; verify chassis ground and external CAN signals (no module internals).
El siguiente paso
Record DTCs, key terminal voltages, lamp behaviour and driving conditions; photograph connectors and hydraulic unit. Consider sending the control unit if scanner communication is unstable or DTCs indicate internal fault.
