Pinpoint Test O : C1B14:11, C1B14:12

WARNING: This page is about a different variant/trim than selected.

Refer to Manual Climate Control System for schematic and connector information.

Normal Operation and Fault Conditions

Voltage is supplied to the climate control actuators from the FCIM on one common power circuit. See air handling, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
FCIM C1B14:11	Sensor Supply Voltage A: Circuit Short To Ground	This DTC sets when the module senses less than 5 volts on the actuator voltage supply circuit, indicating a short to ground.
FCIM C1B14:12	Sensor Supply Voltage A: Circuit Short To Battery	This DTC sets when the module senses greater than 5 volts on the actuator voltage supply circuit, indicating a short to voltage.

Possible Sources

Wiring, terminals or connectors
FCIM

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

O1 CHECK THE FCIM (FRONT CONTROLS INTERFACE MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, perform FCIM self-test.
Is DTC C1B14:11 or C1B14:12 present?

Yes GO to O2

No VERIFY a customer concern. REFER to Symptom Charts .

O2 CHECK THE FCIM (FRONT CONTROLS INTERFACE MODULE) REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect FCIM C2402A.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2402A-2	Courtesy of FORD MOTOR COMPANY	Ground
C2402A-3	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to O3

O3 CHECK THE FCIM (FRONT CONTROLS INTERFACE MODULE) REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2402A-2	Courtesy of FORD MOTOR COMPANY	Ground
C2402A-3	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes

GO to O4

No	REPAIR the circuit.

O4 CHECK THE A/C (AIR CONDITIONING) COMPONENTS

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2402A-3	Courtesy of FORD MOTOR COMPANY	C2402A-2

While measuring the resistance, disconnect the following components one at a time, in order. Stop disconnecting components if the measured resistance rises above 200 ohms.
- In-vehicle temperature and humidity sensor C233
- Air distribution door actuator C236
- Air inlet door actuator C289
- Temperature door actuator C2091

Did the resistance rise above 200 ohms?

Yes

INSTALL a new sensor or actuator (the last one to be disconnected). REFER to the appropriate procedure . When installing an actuator, CONNECT the actuator electrical connector before the FCIM. This allows the actuator to be calibrated when the FCIM is connected. TEST the system for normal operation. If the concern is still present, GO to O5

No	REPAIR the circuits.

O5 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

Connect the 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, Refer to FCIM Guided Routine .

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.