NISSAN LATIO 2010 Service Repair Manual

LAN-172
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 13)]
CAN COMMUNICATION CIRCUIT
CAN COMMUNICATION CIRCUIT
Diagnosis ProcedureINFOID:0000000005531949
1.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect all the unit connectors on CAN communication system.
4. Check terminals and connectors for damage, bend and loose connection.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS CONTI NUITY (SHORT CIRCUIT)
Check the continuity between t he data link connector terminals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check the harness and repair the root cause.
3.CHECK HARNESS CONTI NUITY (SHORT CIRCUIT)
Check the continuity between the data link connector and the ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Check the harness and repair the root cause.
4.CHECK ECM AND IPDM E/R TERMINATION CIRCUIT
1. Remove the ECM and the IPDM E/R.
2. Check the resistance between the ECM terminals.
3. Check the resistance between the IPDM E/R terminals.
Is the measurement value within the specification?
YES >> GO TO 5.
NO >> Replace the ECM and/or the IPDM E/R.
5.CHECK SYMPTOM
Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with
customer)” are reproduced.
Data link connector Continuity
Connector No. Terminal No.
M22 614Not existed
Data link connector
GroundContinuity
Connector No. Terminal No.
M22 6
Not existed
14 Not existed
ECM
Resistance (Ω)
Te r m i n a l N o .
84 83Approx. 108 – 132
IPDM E/R Resistance (Ω)
Te r m i n a l N o .
41 40Approx. 108 – 132
LKIA0037E
Revision: January 20102010 Versa

CAN COMMUNICATION CIRCUITLAN-173
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 13)]
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Inspection result
Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
6.CHECK UNIT REPRODUCTION
Perform the reproduction test as per the following procedure for each unit.
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Disconnect one of the unit connectors of CAN communication system.
NOTE:
ECM and IPDM E/R have a termination circuit. Check other units first.
4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced.
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.
Revision: January 20102010 Versa

LAN-174
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 14)]
MAIN LINE BETWEEN DLC AND ABS CIRCUIT
SERVICE INFORMATION
MAIN LINE BETWEEN
DLC AND ABS CIRCUIT
Diagnosis ProcedureINFOID:0000000005531957
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
- Harness connector M69
- Harness connector E7
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors M69 and E7.
2. Check the continuity between the data link connector and the harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the main line between the data link connector and the harness connector M69.
3.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the connector of ABS actuat or and electric unit (control unit).
2. Check the continuity between the harness connector and the ABS actuator and electric unit (control unit)
harness connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the data link connector and the ABS actuator and electric unit (control unit).
NO >> Repair the main line between the harness connec tor E7 and the ABS actuator and electric unit
(control unit).
Data link connector Harness connector
Continuity
Connector No. Terminal No.Connector No. Terminal No.
M22 6
M69 32A
Existed
14 31AExisted
Harness connector ABS actuator and electric unit (control unit)
harness connector Continuity
Connector No. Terminal No.Connector No. Terminal No.
E7 32A
E33 26
Existed
31A 15Existed
Revision: January 20102010 Versa

ECM BRANCH LINE CIRCUITLAN-175
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 14)]
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ECM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005531959
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con- nector side).
-ECM
- Harness connector E7
- Harness connector M69
Is the inspection result normal?
YES >> GO TO 2.
NO >> 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.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> 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 the following.
• HR16DE: EC-115, "
Diagnosis Procedure"
•MR18DE: EC-634, "Diagnosis Procedure"
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to the following.
• HR16DE: EC-23, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special
Repair Requirement"
• MR18DE: EC-579, "Procedure After Replacing ECM"
YES (Past error)>>Error was det ected in the ECM branch line.
NO >> Repair the power supply and the ground circuit.
ECM harness connector Resistance (Ω)
Connector No. Terminal No.
E16 84 83 Approx. 108 – 132
Revision: January 20102010 Versa

LAN-176
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 14)]
BCM BRANCH LINE CIRCUIT
BCM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005531960
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 BCM for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of BCM.
2. Check the resistance between the BCM harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the BCM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the BCM. Refer to BCS-16, "
BCM Power Supply and Ground
Circuit Inspection".
Is the inspection result normal?
YES (Present error)>>Replace the BCM. Refer to BCS-19, "Removal and Installation of BCM".
YES (Past error)>>Error was detected in the BCM branch line.
NO >> Repair the power supply and the ground circuit.
BCM harness connector Resistance (Ω)
Connector No. Terminal No.
M18 3940Approx. 54 – 66
Revision: January 20102010 Versa

DLC BRANCH LINE CIRCUITLAN-177
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 14)]
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DLC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005531961
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
Check the resistance between the data link connector terminals.
Is the measurement value within the specification?
YES (Present error)>>Check CA N system type decision again.
YES (Past error)>>Error was detected in the data link connector branch line circuit.
NO >> Repair the data link connector branch line.
Data link connector Resistance (Ω)
Connector No. Terminal No.
M22 614Approx. 54 – 66
Revision: January 20102010 Versa

LAN-178
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 14)]
EPS BRANCH LINE CIRCUIT
EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005531962
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 EPS control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of EPS control unit.
2. Check the resistance between the EPS control unit harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the EPS control unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the EPS control unit. Refer to STC-9, "
Diagnosis Proce-
dure".
Is the inspection result normal?
YES (Present error)>>Replace the EPS control unit. Refer to PS-9, "Removal and Installation".
YES (Past error)>>Error was detected in the EPS control unit branch line.
NO >> Repair the power supply and the ground circuit.
EPS control unit harness connector Resistance (Ω)
Connector No. Terminal No.
M53 916Approx. 54 – 66
Revision: January 20102010 Versa

I-KEY BRANCH LINE CIRCUITLAN-179
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 14)]
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I-KEY BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005531963
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of Intelligent Key unit.
2. Check the resistance between the Intelli gent Key unit harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the Intelligent Key unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the Intelligent Key unit. Refer to BL-126, "
Power Supply and
Ground Circuit Inspection".
Is the inspection result normal?
YES (Present error)>>Replace the Intelligent Key unit. Refer to BL-158, "Removal and Installation of Intelli-
gent Key Unit".
YES (Past error)>>Error was detected in the Intelligent Key unit branch line.
NO >> Repair the power supply and the ground circuit.
Intelligent Key unit harness connector Resistance (Ω)
Connector No. Terminal No.
M52 2 3 Approx. 54 – 66
Revision: January 20102010 Versa

LAN-180
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 14)]
M&A BRANCH LINE CIRCUIT
M&A BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005531964
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connecto rs of the combination meter for damage, bend and loose connection
(unit side and connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of combination meter.
2. Check the resistance between the combination meter harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the combination meter branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the combination meter. Refer to DI-15, "
Power Supply and
Ground Circuit Inspection".
Is the inspection result normal?
YES (Present error)>>Replace the combination meter. Refer to IP-12, "Removal and Installation".
YES (Past error)>>Error was detected in the combination meter branch line.
NO >> Repair the power supply and the ground circuit.
Combination meter harness connector Resistance (Ω)
Connector No. Terminal No.
M24 12Approx. 54 – 66
Revision: January 20102010 Versa

STRG BRANCH LINE CIRCUITLAN-181
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 14)]
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STRG BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005531965
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the steer ing angle sensor for damage, bend and loose connection
(unit side and connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> 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.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> 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-51, "
Schematic".
Is the inspection result normal?
YES (Present error)>>Replace the steering angle sensor. Refer to BRC-91, "Removal and Installation".
YES (Past error)>>Error was detected in the steering angle sensor branch line.
NO >> Repair the power supply and the ground circuit.
Steering angle sensor harness connector Resistance (Ω)
Connector No. Terminal No.
M64 4 8 Approx. 54 – 66
Revision: January 20102010 Versa