064

Symptom: Parking heater fails to start.

064

Fault symptom

Parking heater fails to start.

Condition

Parking heater activated.

Diagnostic help

Parking heater can be activated with Tech 2.

Parking heater function can be programmed in SID.

Eberspächer diagnostics instrument used for diagnosis.

Diagnostic procedure

1. Check flame temperature sensor

•	Lower the heater to gain access to the control module.

•	Remove the parking heater control module.

•	Unplug connector B2.

•	Take a resistance reading across pins 13 and 14 in female connector B2.

•	Value should be less than 3040 ohms.

Test results OK?

YES

-	Inspect the connector for corrosion.

-	Go to point 2.

NO

-	Change the flame temperature sensor.

-	Go to point 2.

2. Final check

•	Delete DTCs in all systems.

•	Contact: SID.

•	Activate parking heater (ON).

•	Perform a functionality check.

•	Evaluate the functionality check.

•	Check that the diagnostic trouble code has not recurred.

Test results OK?

YES

-	Fault rectified successfully.

NO

-	See ’Procedure for replacement of control module’.