DTC C1295, C1307, C1441, C1442, C1443, C1444, C144A, C144B, C144C, C144D [BCM]

id0902f5841200

Description

DTC C1295

•  Steering angle sensor internal malfunction

DTC C1307

•  Steering angle sensor encoder ring defective

DTC C1441/C1443

•  Steering angle sensor A signal circuit malfunction

DTC C1442/C1444

•  Steering angle sensor B signal circuit malfunction

DTC C144A/C144C

•  Steering angle sensor C signal circuit malfunction

DTC C144B/C144D

•  Steering angle sensor Z signal circuit malfunction

Detection condition

DTC C1295

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

DTC C1307

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

DTC C1441

•  Open circuit in steering angle sensor A signal circuit.

DTC C1442

•  Open circuit in steering angle sensor B signal circuit.

DTC C1443

•  Short to ground in steering angle sensor A signal circuit.

DTC C1444

•  Short to ground in steering angle sensor B signal circuit.

DTC C144A

•  Short to ground in steering angle sensor C signal circuit.

DTC C144B

•  Short to ground in steering angle sensor Z signal circuit.

DTC C144C

•  Open circuit in steering angle sensor C signal circuit.

DTC C144D

•  Open circuit in steering angle sensor Z signal circuit.

Possible cause

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

•  Steering wheel is off-center.

•  Steering angle sensor connector or terminal malfunction

•  BCM connector or terminal malfunction

•  Short to ground in wiring harness between the following terminals:

―  Steering angle sensor terminal F—BCM terminal 3V

―  Steering angle sensor terminal A—BCM terminal 3W

―  Steering angle sensor terminal C—BCM terminal 3S

―  Steering angle sensor terminal E—BCM terminal 3T

―  Steering angle sensor terminal D—BCM terminal 3X

•  Short to power supply in wiring harness between the following terminals:

―  Steering angle sensor terminal A—BCM terminal 3W

―  Steering angle sensor terminal C—BCM terminal 3S

―  Steering angle sensor terminal E—BCM terminal 3T

―  Steering angle sensor terminal D—BCM terminal 3X

•  Open circuit in wiring harness between the following terminals:

―  Steering angle sensor terminal F—BCM terminal 3V

―  Steering angle sensor terminal A—BCM terminal 3W

―  Steering angle sensor terminal C—BCM terminal 3S

―  Steering angle sensor terminal E—BCM terminal 3T

―  Steering angle sensor terminal D—BCM terminal 3X

―  Steering angle sensor terminal B—BCM terminal 3N

•  Improper installation or positioning of the steering angle sensor

•  Steering angle sensor malfunction

•  BCM malfunction

Description	DTC C1295 • Steering angle sensor internal malfunction DTC C1307 • Steering angle sensor encoder ring defective DTC C1441/C1443 • Steering angle sensor A signal circuit malfunction DTC C1442/C1444 • Steering angle sensor B signal circuit malfunction DTC C144A/C144C • Steering angle sensor C signal circuit malfunction DTC C144B/C144D • Steering angle sensor Z signal circuit malfunction
Detection condition	DTC C1295 • BCM detects the steering angle sensor internal abnormality (signal overflow). DTC C1307 • BCM detects the steering angle sensor internal abnormality (signal jump). DTC C1441 • Open circuit in steering angle sensor A signal circuit. DTC C1442 • Open circuit in steering angle sensor B signal circuit. DTC C1443 • Short to ground in steering angle sensor A signal circuit. DTC C1444 • Short to ground in steering angle sensor B signal circuit. DTC C144A • Short to ground in steering angle sensor C signal circuit. DTC C144B • Short to ground in steering angle sensor Z signal circuit. DTC C144C • Open circuit in steering angle sensor C signal circuit. DTC C144D • Open circuit in steering angle sensor Z signal circuit.
Possible cause	• Excessive grease is adhering to solid disc for steering angle detection • Steering wheel is off-center. • Steering angle sensor connector or terminal malfunction • BCM connector or terminal malfunction • Short to ground in wiring harness between the following terminals: ― Steering angle sensor terminal F—BCM terminal 3V ― Steering angle sensor terminal A—BCM terminal 3W ― Steering angle sensor terminal C—BCM terminal 3S ― Steering angle sensor terminal E—BCM terminal 3T ― Steering angle sensor terminal D—BCM terminal 3X • Short to power supply in wiring harness between the following terminals: ― Steering angle sensor terminal A—BCM terminal 3W ― Steering angle sensor terminal C—BCM terminal 3S ― Steering angle sensor terminal E—BCM terminal 3T ― Steering angle sensor terminal D—BCM terminal 3X • Open circuit in wiring harness between the following terminals: ― Steering angle sensor terminal F—BCM terminal 3V ― Steering angle sensor terminal A—BCM terminal 3W ― Steering angle sensor terminal C—BCM terminal 3S ― Steering angle sensor terminal E—BCM terminal 3T ― Steering angle sensor terminal D—BCM terminal 3X ― Steering angle sensor terminal B—BCM terminal 3N • Improper installation or positioning of the steering angle sensor • 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. (See COMBINATION SWITCH REMOVAL/INSTALLATION.) • 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 CONNECTOR • Turn the ignition switch to the OFF position. • Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].) • Disconnect the steering angle sensor connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is there any malfunction?	Yes	Repair or replace the connector, then go to Step 10.
3		No	Go to the next step.
4	INSPECT BCM CONNECTOR • Disconnect the BCM connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is there any malfunction?	Yes	Repair or replace the connector, then go to Step 10.
4		No	Go to the next step.
5	INSPECT FOR SHORT TO GROUND IN STEERING ANGLE SENSOR CIRCUIT • Verify that the steering angle sensor and BCM connectors are disconnected. • Inspect for continuity between the following terminals (wiring harness-side) and body ground: ― Steering angle sensor terminal F ― Steering angle sensor terminal A ― Steering angle sensor terminal C ― Steering angle sensor terminal E ― Steering angle sensor terminal D • Is there continuity?	Yes	Repair or replace the wiring harness which has a short to ground, then go to Step 10.
5		No	Go to the next step.
6	INSPECT FOR SHORT TO POWER SUPPLY IN STEERING ANGLE SENSOR CIRCUIT • Verify that the steering angle sensor and BCM connectors are disconnected. • Reconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].) • Turn the ignition switch to the ON position. • Measure the voltage at the following terminals (wiring harness-side): ― Steering angle sensor terminal A ― Steering angle sensor terminal C ― Steering angle sensor terminal E ― Steering angle sensor terminal D • Is the voltage 0 V?	Yes	Go to the next step.
6		No	Repair or replace the wiring harness which has a short to power supply, then go to Step 10.
7	INSPECT FOR OPEN CIRCUIT IN STEERING ANGLE SENSOR CIRCUIT • Verify that the steering angle sensor and BCM connectors are disconnected. • Turn the ignition switch to the OFF position. • Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].) • Inspect for continuity between the following terminals (wiring harness-side): ― Steering angle sensor terminal F—BCM terminal 3V ― Steering angle sensor terminal A—BCM terminal 3W ― Steering angle sensor terminal C—BCM terminal 3S ― Steering angle sensor terminal E—BCM terminal 3T ― Steering angle sensor terminal D—BCM terminal 3X ― Steering angle sensor terminal B—BCM terminal 3N • Is there continuity?	Yes	Go to the next step.
7		No	Repair or replace the wiring harness which has an open circuit, then go to Step 10.
8	INSPECT FOR IMPROPER INSTALLATION OF STEERING ANGLE SENSOR • Inspect the installation of the steering angle sensor. (See COMBINATION SWITCH REMOVAL/INSTALLATION.) • Is there any malfunction?	Yes	Repair installation or replace the steering angle sensor, then go to Step 10. (See COMBINATION SWITCH REMOVAL/INSTALLATION.)
8		No	Go to the next step.
9	INSPECT STEERING ANGLE SENSOR • Inspect the steering angle sensor. (See STEERING ANGLE SENSOR INSPECTION.) • Is there any malfunction?	Yes	Replace the steering angle sensor, then go to the next step. (See COMBINATION SWITCH REMOVAL/INSTALLATION.)
9		No	Go to the next step.
10	VERIFY DTC TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].) • Clear the DTC for the BCM using the M-MDS. (See CLEARING DTC [BCM].) • Drive the vehicle at 10 km/h {6.2 mph} or more. • Retrieve the BCM DTCs using the M-MDS. (See DTC INSPECTION [BCM].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.) Go to the next step.
10		No	Go to the next step.
10	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [BCM].)
10		No	DTC troubleshooting completed.