Control unit 1, ACS
â–¶ How to fix
Check cable harness and connectors to control unit 1 (E751). If the fault persists, renew control unit 1.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
No contact with control unit 1, either via the red or pink CAN bus.
Possible cause
Short circuit or open circuit in the circuit for control unit 1 or defective control unit.