DTC C1295, C1307, C1441, C1442, C1443, C1444, C144A, C144C [BCM]

id0902f5839800

DTC C1295, C1307, C1441, C1442, C1443, C1444, C144A, C144C

Steering angle sensor system

DETECTION CONDITION

C1295

•  BCM detects steering angle sensor internal abnormality (signal overflow)

C1307

•  BCM detects steering angle sensor internal abnormality (signal jump)

C1441, C1442, C144C

•  Open circuit in wiring harness between BCM and steering angle sensor

C1443, C1444, C144A

•  Short to GND in wiring harness between BCM and steering angle sensor

POSSIBLE CAUSE

•  Excessive grease is adhering to solid disc for steering angle detection

•  Improper installation or positioning of the steering angle sensor

•  Steering wheel is off-center

•  Open circuit in wiring harness between BCM terminal 3Q and steering angle sensor terminal F

•  Open circuit or short to power supply in wiring harness between BCM terminal 3O and steering angle sensor terminal A

•  Open circuit or short to power supply in wiring harness between BCM terminal 3M and steering angle sensor terminal C

•  Open circuit or short to power supply in wiring harness between BCM terminal 3K and steering angle sensor terminal E

•  Open circuit or short to power supply in wiring harness between BCM terminal 3I and steering angle sensor terminal D

•  Open circuit in wiring harness between BCM terminal 3G and steering angle sensor terminal B

•  Short to GND in wiring harness between BCM terminal 3Q and steering angle sensor terminal F

•  Short to GND in wiring harness between BCM terminal 3O and steering angle sensor terminal A

•  Short to GND in wiring harness between BCM terminal 3M and steering angle sensor terminal C

•  Short to GND in wiring harness between BCM terminal 3K and steering angle sensor terminal E

•  Short to GND in wiring harness between BCM terminal 3I and steering angle sensor terminal D

•  Steering angle sensor signal circuit short each other

•  Steering angle sensor malfunction

•  BCM malfunction

DTC C1295, C1307, C1441, C1442, C1443, C1444, C144A, C144C	Steering angle sensor system
DETECTION CONDITION	C1295 • BCM detects steering angle sensor internal abnormality (signal overflow) C1307 • BCM detects steering angle sensor internal abnormality (signal jump) C1441, C1442, C144C • Open circuit in wiring harness between BCM and steering angle sensor C1443, C1444, C144A • Short to GND in wiring harness between BCM and steering angle sensor
POSSIBLE CAUSE	• Excessive grease is adhering to solid disc for steering angle detection • Improper installation or positioning of the steering angle sensor • Steering wheel is off-center • Open circuit in wiring harness between BCM terminal 3Q and steering angle sensor terminal F • Open circuit or short to power supply in wiring harness between BCM terminal 3O and steering angle sensor terminal A • Open circuit or short to power supply in wiring harness between BCM terminal 3M and steering angle sensor terminal C • Open circuit or short to power supply in wiring harness between BCM terminal 3K and steering angle sensor terminal E • Open circuit or short to power supply in wiring harness between BCM terminal 3I and steering angle sensor terminal D • Open circuit in wiring harness between BCM terminal 3G and steering angle sensor terminal B • Short to GND in wiring harness between BCM terminal 3Q and steering angle sensor terminal F • Short to GND in wiring harness between BCM terminal 3O and steering angle sensor terminal A • Short to GND in wiring harness between BCM terminal 3M and steering angle sensor terminal C • Short to GND in wiring harness between BCM terminal 3K and steering angle sensor terminal E • Short to GND in wiring harness between BCM terminal 3I and steering angle sensor terminal D • Steering angle sensor signal circuit short each other • Steering angle sensor malfunction • BCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT SOLID DISC FOR STEERING ANGLE DETECTION • Visually inspect the solid disc for the steering angle detection. • Is excessive grease adhering?	Yes	Wipe off excessive grease using a cloth, then go to Step 10.
1		No	Go to the next step.
2	INSPECT STEERING WHEEL FOR OFF-CENTER • Drive the vehicle and inspect the steering wheel position while driving in a straight line. • Is the steering wheel off-center?	Yes	Inspect and adjust the front wheel alignment to correct the steering wheel alignment, then go to Step 10. (See FRONT WHEEL ALIGNMENT.)
2		No	Go to the next step.
3	INSPECT STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT FOR OPEN • Turn the ignition switch to the ON position. • Measure the voltage between the steering angle sensor terminal F and body GND. • Is the voltage 5 V?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness, then go to Step 10.
4	INSPECT STEERING ANGLE SENSOR GND CIRCUIT FOR OPEN • Turn the ignition switch to the LOCK position. • Disconnect the steering angle sensor connector. • Inspect for continuity between the steering angle sensor terminal B (wiring harness-side) and body GND. • Is there continuity?	Yes	Go to the next step.
4		No	Repair or replace the wiring harness, then go to Step 10.
5	INSPECT STEERING ANGLE SENSOR SIGNAL CIRCUIT FOR OPEN • Disconnect the BCM connector. • Inspect for continuity between the following terminals: ― BCM terminal 3O—steering angle sensor terminal A (wiring harness-side) ― BCM terminal 3M—steering angle sensor terminal C (wiring harness-side) ― BCM terminal 3K—steering angle sensor terminal E (wiring harness-side) ― BCM terminal 3I—steering angle sensor terminal D (wiring harness-side) • Is there continuity?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness, then go to Step 10.
6	INSPECT STEERING ANGLE SENSOR SIGNAL CIRCUIT FOR SHORT TO GND • Inspect for continuity between the following terminals and body GND: ― Steering angle sensor terminal A (wiring harness-side) ― Steering angle sensor terminal C (wiring harness-side) ― Steering angle sensor terminal E (wiring harness-side) ― Steering angle sensor terminal D (wiring harness-side) • Is there continuity?	Yes	Repair or replace the wiring harness, then go to Step 10.
6		No	Go to the next step.
7	INSPECT STEERING ANGLE SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Measure voltage between the following and body GND: ― Steering angle sensor terminal A (wiring harness-side) ― Steering angle sensor terminal C (wiring harness-side) ― Steering angle sensor terminal E (wiring harness-side) ― Steering angle sensor terminal D (wiring harness-side) • Is the voltage 1 V or less?	Yes	Go to the next step.
7		No	Repair or replace the wiring harness, then go to Step 10.
8	INSPECT FOR IMPROPER INSTALLATION OF STEERING ANGLE SENSOR • Is the installation normal?	Yes	Go to the next step.
8		No	Repair installation or replace the steering angle sensor, then go to Step 10.
9	INSPECT STEERING ANGLE SENSOR • Inspect the steering angle sensor. (See STEERING ANGLE SENSOR INSPECTION.) • Is the steering angle sensor normal?	Yes	Go to the next step.
9		No	Replace the steering angle sensor, then go to Step 10. (See COMBINATION SWITCH DISASSEMBLY/ASSEMBLY.)
10	VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the BCM memory using the M-MDS. • Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more. • Is the same DTC present?	Yes	Replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
10		No	DTC troubleshooting completed.