Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




The control module can control the blower fan via a relay. Diagnostic trouble code (DTC) HEA-851 is stored if the control module registers that the signal to the relay is too high.

Substitute value
None

Possible source
- Short-circuit to supply voltage in the signal cable

Fault symptom[s]
- Poor heating in the passenger compartment
(applies if the warmer is connected with this function)