High supply voltage
â–¶ How to fix
Check the power supply and connectors to TCC. Check if other systems have the same DTC, that would indicate a general problem in the vehicle. If a jump starter has been used this DTC can be ignored.
What you'll see
TCC functionality is limited or completely missing.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The ECU checks if supply voltage raises above the normal operating range (32 V).
Possible cause
The power system in the vehicle supplies more than 32V. The reasons could be a faulty battery charging system (generator etc.) or that an external battery charger or jump starter that outputs high voltage is connected.