Stabilizer System, ESP

C1540





Solenoid valves. Open Circuit

Fault symptoms
Warning lamps for ESP, foot brake and central warning lamp are on.
ESP OFF indicator lamp is on.
No ESP function.

Conditions
^ If there is no current supplied to three or more of the valves.
^ If the control module's internal voltage relay is defective.
^ No power supply (+30 circuit) to the control module (pins 17 and 18).

Diagnostic help
The solenoid valves can be activated using the diagnostic tool.
- Select "Activate".
- Select "Valves".
The respective valve can then be selected in the sub-menu. The selected valve is activated for about 30 seconds at a frequency of 1 Hz.