Possible Causes

Fuses
Wiring, terminals or connectors
SASM

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

Fig 1: Steering Angle Sensor Module (SASM) Connector End View (C226A)

Courtesy of FORD MOTOR CO.

Harness Side

Circuit

BL1: CHECK FOR OTHER SASM DTCS

Ignition ON, engine OFF.
Carry out the SASM self-test.
Is DTC U3003:1C present?

Yes	No
Go to PINPOINT TEST BD .	Go to BL2.

BL2: CHECK FOR OTHER BCM DTCS

Carry out the BCM self-test.
Are any DTCs present in the BCM?

Yes	No
DIAGNOSE all BCM DTCs. REFER to DIAGNOSIS AND TESTING	Go to BL3.

BL3: CHECK THE SASM IGNITION VOLTAGE CIRCUIT FOR AN OPEN

Ignition OFF.
SASM connector disconnected. (C226A)

Measure the resistance between:

(+) BCM_A Connector, Harness Side	(-) SASM (C226A) Connector, Harness Side
IGN START/RUN	IGN START/RUN

Measure the resistance between:

(+) BCM_H Connector, Harness Side	(-) SASM (C226A) Connector, Harness Side
IGN START/RUN	IGN START/RUN

Is the resistance less than 3 ohms?

Yes	No
Go to BL4.	REPAIR the circuit.

BL4: VERIFY ALL WIRING CONNECTIONS

Using a good light source, inspect disconnected electrical connectors for the following:
- corrosion - install new connector or terminal and clean the module pins.
- damaged or bent pins - install new terminals or pins.
- pushed-out pins - install new pins as necessary.
- spread terminals - install new terminals as necessary.
Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals?

Yes	No
Go to BL5.	REPAIR the connector or terminals. REFER to OEM CONNECTOR REPAIR PROCEDURES (EXCEPT ELECTRIC) for schematic and connector information.

BL5: CHECK FOR CORRECT SASM OPERATION

SASM connector connected. (C226A) Make sure the connector seats and latches correctly.
Operate the system and determine if the concern is still present.
Is the concern still present?

Yes	No
INSTALL a new SASM. CHECK OASIS for any applicable service articles: TSB, GSB (general service bulletin), SSM (special service message) or FSA (Field Service Action). 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 SASM-clockspring. REFER to the appropriate Removal and Installation procedure in REMOVAL AND INSTALLATION	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.

Yes

INSTALL a new SASM.
CHECK OASIS for any applicable service articles: TSB, GSB (general service bulletin), SSM (special service message) or FSA (Field Service Action).
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 SASM-clockspring. REFER to the appropriate Removal and Installation procedure in REMOVAL AND INSTALLATION

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.