CTS unit
â–¶ How to fix
Check that the cable harness is not short circuited to +24 V. Check that the ACC control unit does not send the signal high, static.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Fault in the signal from the ACC, Automatic climate system to the CTS unit.
Possible cause
The signal from the ACC, Automatic climate system has locked on high for more than 2 minutes.