Nissan Juke Service and Repair Manual : C1143 steering angle sensor
DTC Logic
DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE� has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT-III.
1. Turn the ignition switch OFF to ON.
2. Perform self-diagnosis for “ABS�.
Is DTC “C1143� detected? YES >> Proceed to BRC-189, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK STEERING ANGLE SENSOR POWER SUPPLY
1. Turn the ignition switch OFF.
2. Disconnect steering angle sensor harness connector.
3. Check voltage between steering angle sensor harness connector and ground.

4. Turn the ignition switch ON.
CAUTION:
Never start engine.
5. Check voltage between steering angle sensor harness connector and ground.

Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT
1. Turn the ignition switch OFF.
2. Check 10 A fuse (#3).
3. Check continuity and short circuit between steering angle sensor harness connector terminal (4) and 10 A fuse (#3).
Is the inspection result normal? YES >> Perform trouble diagnosis for ignition power supply. Refer to PG-15, "Wiring Diagram - IGNITION POWER SUPPLY -".
NO >> Repair or replace error-detected parts.
3.CHECK STEERING ANGLE SENSOR GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Check continuity between steering angle sensor harness connector and ground.

Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK TERMINAL
Check steering angle sensor pin terminals for damage or loose connection with harness connector.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK CAN COMMUNICATION LINE
Check “STRG BRANCH LINE CIRCUIT�. Refer to LAN-51, "Diagnosis Procedure".
Is the inspection result normal? YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-233, "Removal and Installation".
NO >> Repair or replace error-detected parts. Refer to BRC-96, "Precaution for Harness Repair".
C1142 press sensor
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE� has been previously conducted, always turn
ignition switch OFF and
wait at least ...
C1144 incomplete steering angle sensor adjustment
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE� has been previously conducted, always turn
ignition switch OFF and
wait at least ...
Other materials:
B2619 BCM
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press push-button ignition switch under the following conditions and wait
1 second or more.
- Selector lever: In the P position
- Brake pedal: Not depressed
2. Check DTC in “Self Diagnostic ...
P0112, P0113 IAT SENSOR
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn
ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
...
ECU diagnosis information
ECM
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
• ECM is located in the engine room left side near battery.
• When disconnecting ECM harness connector (1), loosen (B) it with
levers as far as they will go as shown in the figure.
2 : ECM
A : Fasten
• Pulse signal is measur ...
