Control unit
â–¶ How to fix
Check the connectors and wiring between the control valves and earth and between control modules and positive voltage. Check for short circuit.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The control unit's driver stage cannot be shut off.
Possible cause
Short circuit between the control valve and earth or between the control module and positive voltage.