sensor NISSAN 350Z 2007 Z33 LAN System User Guide

LAN-68
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
ECM Branch Line CircuitNKS0054N
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ECM for damage, bend and loose connection (unit side and
connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ECM.
2. Check the resistance between the ECM harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the ECM branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to EC-142, "
POWER SUPPLY AND
GROUND CIRCUIT" .
OK or NG
OK >>
Present error: Replace the ECM. Refer to EC-76, "Procedure After Replacing ECM" .

Past error: Error was detected in the ECM branch line.
NG >> Repair the power supply and the ground circuit.
Air Bag Diagnosis Sensor Unit Branch Line CircuitNKS0054O
INSPECTION PROCEDURE
1. CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Check the air bag diagnosis sensor unit. Refer to SRS-9, "
TROUBLE DIAGNOSIS" .
OK or NG
OK >> Replace the main harness.
NG >> Replace parts whose air bag system has a malfunction.
ECM harness connector
Resistance (Ω)
Connector No. Terminal No.
M71 114 113 Approx. 108 – 132

LAN-72
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the unified meter and A/C amp. Refer to DI-49, "
Power Sup-
ply and Ground Circuit Inspection" .
OK or NG
OK >>
Present error: Replace the unified meter and A/C amp. Refer to DI-55, "Removal and Installa-
tion of Unified Meter and A/C Amp." .

Past error: Error was detected in the unified meter and A/C amp. branch line.
NG >> Repair the power supply and the ground circuit.
Steering Angle Sensor Branch Line CircuitNKS0054U
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the steering angle sensor for damage, bend and loose connection
(unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of steering angle sensor.
2. Check the resistance between the steering angle sensor harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the steering angle sensor branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the steering angle sensor. Refer to BRC-86, "
Schematic" .
OK or NG
OK >>
Present error: Replace the steering angle sensor. Refer to BRC-133, "Removal and Installa-
tion" .

Past error: Error was detected in the steering angle sensor branch line.
NG >> Repair the power supply and the ground circuit.
ABS Actuator and Electric Unit (Control Unit) Branch Line CircuitNKS0054V
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
Steering angle sensor harness connector
Resistance (Ω)
Connector No. Terminal No.
M22 4 5 Approx. 54 – 66