Pinpoint Test O : B1A63:11, B1A63:15, B1A64:11, B1A64:15

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

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

Normal Operation and Fault Conditions

The sunload sensor supplies information to the FCIM indicating the sunload intensity on the vehicle and the FCIM adjusts the system based on that information. REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
FCIM B1A63:11	Right Solar Sensor: Circuit Short To Ground	Module senses a short to ground from the right sunload sensor feedback circuit.
FCIM B1A63:15	Right Solar Sensor: Circuit Short To Battery Or Open	Module senses an open or a short to voltage from the right sunload sensor feedback circuit.
FCIM B1A64:11	Left Solar Sensor: Circuit Short To Ground	Module senses a short to ground from the left sunload sensor feedback circuit.
FCIM B1A64:15	Left Solar Sensor: Circuit Short To Battery Or Open	Module senses an open or a short to voltage from the left sunload sensor feedback circuit.

Possible Sources

Wiring, terminals or connectors
Autolamp and sunload sensor
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 SUNLOAD SENSOR CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect Sunload sensor C286.

Disconnect FCIM C2402B.

Disconnect BCM C2280G.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C286-1	Courtesy of FORD MOTOR COMPANY	Ground
C286-2	Courtesy of FORD MOTOR COMPANY	Ground
C286-3	Courtesy of FORD MOTOR COMPANY	Ground
C286-4	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to O2

O2 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C286-1	Courtesy of FORD MOTOR COMPANY	Ground
C286-2	Courtesy of FORD MOTOR COMPANY	Ground
C286-3	Courtesy of FORD MOTOR COMPANY	Ground
C286-4	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to O3

No	REPAIR the circuit.

O3 CHECK THE SUNLOAD SENSOR CIRCUITS FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C286-1	Courtesy of FORD MOTOR COMPANY	C2402B-22
C286-3	Courtesy of FORD MOTOR COMPANY	C2402B-21

Positive Lead	Measurement / Action	Negative Lead
C286-2	Courtesy of FORD MOTOR COMPANY	C2280G-24
C286-4	Courtesy of FORD MOTOR COMPANY	C2280G-22

Are the resistances less than 3 ohms?

Yes

GO to O4

No	REPAIR the circuit.

O4 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO EACH OTHER

Measure:

Positive Lead	Measurement / Action	Negative Lead
C286-1	Courtesy of FORD MOTOR COMPANY	C286-2
C286-1	Courtesy of FORD MOTOR COMPANY	C286-3
C286-1	Courtesy of FORD MOTOR COMPANY	C286-4
C286-2	Courtesy of FORD MOTOR COMPANY	C286-3
C286-2	Courtesy of FORD MOTOR COMPANY	C286-4
C286-3	Courtesy of FORD MOTOR COMPANY	C286-4

Are the resistances greater than 10, 000 ohms?

Yes	INSTALL a new sunload sensor. REFER to: Sunload Sensor . TEST the system for normal operation. If the concern is still present, GO to O5

No	REPAIR the circuit.

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.