2008 NISSAN TIIDA connector d2

LAN-26
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
COMPONENT DIAGNOSIS
CAN COMMUNICATION SYSTEM
Component Parts LocationINFOID:0000000001711221
1. BCM M18 2. ABS actuator and electric unit (con-
trol unit) E333. IPDM E/R E46
4. ECM E16 5. EPS control unit M53 6. TCM E31
7. Combination meter M24 8. Data link connector M22 9. Air bag diagnosis sensor unit M35
10. Intelligent Key unit M52
BKIA0270E

LAN-30
< COMPONENT DIAGNOSIS >[CAN]
MALFUNCTION AREA CHART
MALFUNCTION AREA CHART
Main LineINFOID:0000000001711223
Branch LineINFOID:0000000001711224
Short CircuitINFOID:0000000001711225
Malfunction Area Reference
Main line between data link connector and ABS actuator and
electric unit (control unit)LAN-31, "
Diagnosis Procedure"
Main line between data link connector and TCMLAN-32, "Diagnosis Procedure"
Malfunction Area Reference
ECM branch line circuit LAN-33, "
Diagnosis Procedure"
BCM branch line circuit LAN-34, "Diagnosis Procedure"
Data link connector branch line circuit LAN-35, "Diagnosis Procedure"
EPS control unit branch line circuit LAN-36, "Diagnosis Procedure"
Intelligent Key unit branch line circuit LAN-37, "Diagnosis Procedure"
Combination meter branch line circuit LAN-38, "Diagnosis Procedure"
ABS actuator and electric unit (control unit) branch line circuit LAN-39, "Diagnosis Procedure"
TCM branch line circuitLAN-40, "Diagnosis Procedure"
IPDM E/R branch line circuit LAN-41, "Diagnosis Procedure"
Malfunction Area Reference
CAN communication circuitLAN-42, "
Diagnosis Procedure"

MAIN LINE BETWEEN DLC AND ABS CIRCUIT
LAN-31
< COMPONENT DIAGNOSIS >[CAN]
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MAIN LINE BETWEEN DLC AND ABS CIRCUIT
Diagnosis ProcedureINFOID:0000000001711226
INSPECTION PROCEDURE
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 CONTINUITY (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 CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of ABS actuator 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 connector E7 and the ABS actuator and electric unit
(control unit).
Data link connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
M226
M6932A Existed
14 31A Existed
Harness connectorABS actuator and electric unit (control unit)
harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
E732A
E3326 Existed
31A 15 Existed

LAN-32
< COMPONENT DIAGNOSIS >[CAN]
MAIN LINE BETWEEN DLC AND TCM CIRCUIT
MAIN LINE BETWEEN DLC AND TCM CIRCUIT
Diagnosis ProcedureINFOID:0000000001711227
INSPECTION PROCEDURE
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 CONTINUITY (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 CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of TCM.
2. Check the continuity between the harness connector and the TCM.
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 TCM.
NO >> Repair the main line between the harness connector E7 and the TCM.
Data link connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
M226
M6932A Existed
14 31A Existed
Harness connector TCM harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
E732A
E315 Existed
31A 6 Existed

ECM BRANCH LINE CIRCUIT
LAN-33
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ECM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000001711229
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 (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 EC-138, "
Diagnosis Procedure".
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to EC-75, "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 84 83 Approx. 108 – 132

LAN-34
< COMPONENT DIAGNOSIS >[CAN]
BCM BRANCH LINE CIRCUIT
BCM BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000001711230
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-15, "
BCM Power Supply and Ground
Circuit Inspection".
Is the inspection result normal?
YES (Present error)>>Replace the BCM. Refer to BCS-18, "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 39 40 Approx. 54 – 66

DLC BRANCH LINE CIRCUIT
LAN-35
< COMPONENT DIAGNOSIS >[CAN]
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DLC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000001711231
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 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 the 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 6 14 Approx. 54 – 66

LAN-36
< COMPONENT DIAGNOSIS >[CAN]
EPS BRANCH LINE CIRCUIT
EPS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000001711232
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 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-14, "
DTC C1601 BAT-
TERY VOLT".
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 9 16 Approx. 54 – 66