High supply voltage
â–¶ How to fix
Check the supply voltage signal measured by the ECU and compare with the battery voltage measured using a multimeter. Make sure that the power system does not cause overvoltage. If the vehicle has been jump started this DTC can be ignored.
What you'll see
No driver-visible symptom recorded.
System reaction
Amber ACS warning lamp
Diagnostic depth
Detection
ECU checks if supply voltage is within normal operating range. Supply voltage is above 32 V.
Possible cause
The power system in the vehicle supplies more than 32V.