NISSAN LATIO 2011 Service Repair Manual

MAIN LINE BETWEEN DLC AND ABS CIRCUIT
LAN-95
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 6)]
C
D
E
F
G H
I
J
L
M A
B
LAN
N
O P
SERVICE INFORMATION
MAIN LINE BETWEEN DLC AND ABS CIRCUIT
Diagnosis ProcedureINFOID:0000000005928596
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 (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 CA N 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: May 2010 2011 Versa

LAN-96
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 6)]
ECM BRANCH LINE CIRCUIT
ECM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000006365617
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 fo r 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-123, "
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 detected in the ECM branch line.
NO >> Repair the power supply and the ground circuit.
ECM harness connector
Resistance (Ω)
Connector No. Terminal No.
E16 8483Approx. 108 – 132
Revision: May 2010 2011 Versa

BCM BRANCH LINE CIRCUITLAN-97
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 6)]
C
D
E
F
G H
I
J
L
M A
B
LAN
N
O P
BCM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928598
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 BC M 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 det ected in the BCM branch line.
NO >> Repair the power supply and the ground circuit.
BCM harness connector Resistance (Ω)
Connector No. Terminal No.
M18 39 40 Approx. 54 – 66
Revision: May 2010 2011 Versa

LAN-98
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 6)]
DLC BRANCH LINE CIRCUIT
DLC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928599
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 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 CAN 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: May 2010 2011 Versa

EPS BRANCH LINE CIRCUITLAN-99
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 6)]
C
D
E
F
G H
I
J
L
M A
B
LAN
N
O P
EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928600
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 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 circui t 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-10, "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 9 16 Approx. 54 – 66
Revision: May 2010 2011 Versa

LAN-100
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 6)]
M&A BRANCH LINE CIRCUIT
M&A BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928601
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: May 2010 2011 Versa

ABS BRANCH LINE CIRCUITLAN-101
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 6)]
C
D
E
F
G H
I
J
L
M A
B
LAN
N
O P
ABS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928602
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 ABS act uator and electric unit (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 ABS actuat or and electric unit (control unit).
2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector termi-
nals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the ABS actuator and electric unit (control unit) branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circ uit of the ABS actuator and electric unit (control unit). Refer to the
following.
• Models with ABS: BRC-28, "
ABS Control Unit Power and Ground Systems Inspection"
• Models with VDC: BRC-75, "ABS/TCS/VDC Control Unit Power and Ground Systems Inspection"
Is the inspection result normal?
YES (Present error)>>Replace the ABS actuator and el ectric unit (control unit). Refer to the following.
• Models with ABS: BRC-36, "
Removal and Installation"
• Models with VDC: BRC-89, "Removal and Installation"
YES (Past error)>>Error was detected in the ABS actuator and electric unit (control unit) branch line.
NO >> Repair the power supply and the ground circuit.
ABS actuator and electric unit (control unit) harness connector
Resistance (Ω)
Connector No. Terminal No.
E33 2615Approx. 54 – 66
Revision: May 2010 2011 Versa

LAN-102
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 6)]
IPDM-E BRANCH LINE CIRCUIT
IPDM-E BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005928603
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 fo r damage, bend and loose connection (unit side and con-
nector side).
- IPDM E/R
- Harness connector E7 (M/T models without ABS)
- Harness connector M69 (M /T models without ABS)
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 IPDM E/R.
2. Check the resistance between the IPDM E/R harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the IPDM E/R branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circ uit of the IPDM E/R. Refer to PG-27, "
IPDM E/R Power/Ground
Circuit Inspection".
Is the inspection result normal?
YES (Present error)>>Replace the IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R".
YES (Past error)>>Error was detected in the IPDM E/R branch line.
NO >> Repair the power supply and the ground circuit.
IPDM E/R harness connector Resistance (Ω)
Connector No. Terminal No.
E46 4140Approx. 108 – 132
Revision: May 2010 2011 Versa

CAN COMMUNICATION CIRCUITLAN-103
< SERVICE INFORMATION > [CAN SYSTEM (TYPE 6)]
C
D
E
F
G H
I
J
L
M A
B
LAN
N
O P
CAN COMMUNICATION CIRCUIT
Diagnosis ProcedureINFOID:0000000005928604
1.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e 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 CONTINUI TY (SHORT CIRCUIT)
Check the continuity between the 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 CONTINUI TY (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 descr ibed in the “Symptom (Results from interview with
customer)” are reproduced.
Data link connector Continuity
Connector No. Terminal No.
M22 6 14 Not 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 83 Approx. 108 – 132
IPDM E/R Resistance (Ω)
Te r m i n a l N o .
41 40Approx. 108 – 132
LKIA0037E
Revision: May 2010 2011 Versa

LAN-104
< SERVICE INFORMATION >[CAN SYSTEM (TYPE 6)]
CAN COMMUNICATION CIRCUIT
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 cable 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: May 2010 2011 Versa