P1537

P1537

Diagnosis information - Control unit DME (DFI)

Activation Oil pump

INFORMATION
- The measured oil pressure is compared with the setpoint oil pressure.
- The setpoint oil pressure depends, among other things, on the ambient conditions (temperatures, off time, etc), operating point of the engine..
- A fault is detected if the PWM signal is outside a defined range for > 30 seconds.

Diagnostic conditions
- Engine running

Possible fault causes
- Dynamic driving style when oil level is near minimum (oil foaming)
- Engine oil pressure too low
(Oil level , Oil quality , Oil dilution , Soiling Oil circuit , Oil circuit Faulty - increased leakage inside the engine)
- Engine oil pressure too high
(Oil quality , Oil thickening , Soiling Oil circuit , Oil circuit Faulty)
- Oil pressure sensor Faulty (incorrectly trimmed)
- Oil pressure control valve Faulty
- Oil pump Faulty