Pinpoint Test Y : B14D3:11, B14D3:15, B14D4:11, B14D4:15

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Y1 CHECK THE REAR AIR DISCHARGE TEMPERATURE SENSOR AND REAR FOOTWELL AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect FCIM .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
	Courtesy of FORD MOTOR COMPANY	Ground
	Courtesy of FORD MOTOR COMPANY	Ground

Is there any voltage present?

Yes	REPAIR the circuit.

GO to Y2

Y2 CHECK THE REAR AIR DISCHARGE TEMPERATURE SENSOR AND REAR FOOTWELL AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
	Courtesy of FORD MOTOR COMPANY	Ground
	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes

GO to Y3

No	REPAIR the circuit.

Y3 CHECK THE REAR AIR DISCHARGE TEMPERATURE SENSOR AND REAR FOOTWELL AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR AN OPEN

Disconnect FCIM .

Disconnect Rear Air Discharge Temperature Sensor .

Disconnect Rear Footwell Air Discharge Temperature Sensor .

Measure:

Rear Air Discharge Temperature Sensor

Positive Lead	Measurement / Action	Negative Lead
	Courtesy of FORD MOTOR COMPANY

Rear Air Discharge Temperature Sensor

Positive Lead	Measurement / Action	Negative Lead
	Courtesy of FORD MOTOR COMPANY

Rear Footwell Air Discharge Temperature Sensor

Positive Lead	Measurement / Action	Negative Lead
	Courtesy of FORD MOTOR COMPANY

Rear Footwell Air Discharge Temperature Sensor

Positive Lead	Measurement / Action	Negative Lead
	Courtesy of FORD MOTOR COMPANY

Are the resistances less than 3 ohms?

Yes	INSTALL a new Rear Air Discharge Temperature Sensor or a new Rear Footwell Air Discharge Temperature Sensor. REFER to Rear Climate Control . TEST the system for normal operation. If the concern is still present, GO to Y4

No	REPAIR the circuit.

Y4 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the FCIM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect all FCIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIM. Refer to the appropriate Information and Entertainment Systems article for the procedure.

No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.