CEM-5F13

Condition

The auxiliary heater relay may not be activated if the diagnostic trouble code is to be set. If the central electronic module (CEM) indicates that the auxiliary heater is short-circuited to ground or that there is an open circuit in the wire, diagnostic trouble code CEM-5F13 will be set.

Substitute value

- None.

Possible source

- The auxiliary heater relay circuit is short-circuited to ground or has an open circuit on its wire.

Fault symptom[s]

- Poor interior heating.