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![INFINITI FX35 2004 Service Manual LAN-156
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
Case 16
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-166, "IPDM E/R Ignition Relay
Circuit INFINITI FX35 2004 Service Manual LAN-156
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
Case 16
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-166, "IPDM E/R Ignition Relay
Circuit](/manual-img/42/57021/w960_57021-3456.png)
LAN-156
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
Case 16
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-166, "IPDM E/R Ignition Relay
Circuit Check" .
Circuit Check Between TCM and Data Link ConnectorAKS00C16
1. CHECK HARNESS FOR OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Disconnect ECM connector and harness connector M82.
4. Check continuity between harness connector M82 terminals
14H (L), 15H (R) and data link connector M5 terminals 6 (L), 14
(R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to
LAN-138, "
Work Flow" .
NG >> Repair harness.
Circuit Check Between Data Link Connector and Unified Meter and A/C Amp.AKS00C17
1. CHECK HARNESS FOR OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Disconnect ECM connector and unified meter and A/C amp. connector.
4. Check continuity between data link connector M5 terminals 6
(L), 14 (R) and unified meter and A/C amp. harness connector
M55 terminals 1 (L), 11 (R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to
LAN-138, "
Work Flow" .
NG >> Repair harness.
PKIA8002E
14H (L) - 6 (L) : Continuity should exist.
15H (R) - 14 (R) : Continuity should exist.
SKIA6861E
6 (L) - 1 (L) : Continuity should exist.
14 (R) - 11 (R) : Continuity should exist.
SKIA6862E
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Circuit Check Between Unified Meter and A/C Amp. and ABS Actuator and Elec-
tric Unit (Control Unit) INFINITI FX35 2004 Service Manual CAN SYSTEM (TYPE 4)
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Circuit Check Between Unified Meter and A/C Amp. and ABS Actuator and Elec-
tric Unit (Control Unit)](/manual-img/42/57021/w960_57021-3457.png)
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Circuit Check Between Unified Meter and A/C Amp. and ABS Actuator and Elec-
tric Unit (Control Unit)
AKS00C18
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connectors for damage, bend and loose connection (connector side and
harness side).
–Harness connector M41
–Harness connector E211
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect unified meter and A/C amp. connector and harness connector M41.
2. Check continuity between unified meter and A/C amp. harness
connector M55 terminals 1 (L), 11 (R) and harness connector
M41 terminals 15G (L), 14G (R).
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between harness connector E211 terminals
15G (L), 14G (R) and ABS actuator and electric unit (control
unit) harness connector E56 terminals 11 (L), 15 (R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to
LAN-138, "
Work Flow" .
NG >> Repair harness.
ECM Circuit CheckAKS00C19
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of ECM for damage, bend and loose connection (control module side and
harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.1 (L) - 15G (L) : Continuity should exist.
11 (R) - 14G (R) : Continuity should exist.
SKIA6863E
15G (L) - 11 (L) : Continuity should exist.
14G (R) - 15 (R) : Continuity should exist.
SKIA6864E
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![INFINITI FX35 2004 Service Manual LAN-158
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check resistance between ECM harness connector M90 termi-
nal INFINITI FX35 2004 Service Manual LAN-158
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check resistance between ECM harness connector M90 termi-
nal](/manual-img/42/57021/w960_57021-3458.png)
LAN-158
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check resistance between ECM harness connector M90 termi-
nals 94 (L) and 86 (R).
OK or NG
OK >> Replace ECM.
NG >> Repair harness between ECM and harness connector
M82.
TCM Circuit CheckAKS00C1A
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side
and harness side).
–A/T assembly connector
–Harness connector F102
–Harness connector M82
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect A/T assembly connector.
2. Check resistance between A/T assembly harness connector
F44 terminals 3 (L) and 8 (R).
OK or NG
OK >> Replace control valve with TCM.
NG >> Repair harness between A/T assembly and display unit.
Display Unit Circuit CheckAKS00C1B
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of display unit for damage, bend and loose connection (unit side and har-
ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.94 (L) - 86 (R) : Approx. 108 - 132Ω
SKIA6865E
3 (L) - 8 (R) : Approx. 54 - 66Ω
SKIA6866E
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect display unit connector.
2. Check resistance between INFINITI FX35 2004 Service Manual CAN SYSTEM (TYPE 4)
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect display unit connector.
2. Check resistance between](/manual-img/42/57021/w960_57021-3459.png)
CAN SYSTEM (TYPE 4)
LAN-159
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect display unit connector.
2. Check resistance between display unit harness connector M62
terminals 14 (L) and 16 (R).
OK or NG
OK >> Replace display unit.
NG >> Repair harness between display unit and harness con-
nector M82.
AWD Control Unit Circuit CheckAKS00C1C
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of AWD control unit for damage, bend and loose connection (control unit
side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect AWD control unit connector.
2. Check resistance between AWD control unit harness connector
M92 terminals 8 (L) and 16 (R).
OK or NG
OK >> Replace AWD control unit.
NG >> Repair harness between AWD control unit and harness
connector M82.
Data Link Connector Circuit CheckAKS00C1D
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check data link connector and terminals for damage, bend and loose connection (connector side and har-
ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.14 (L) - 16 (R) : Approx. 54 - 66Ω
SKIA6867E
8 (L) - 16 (R) : Approx. 54 - 66Ω
SKIA6889E
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![INFINITI FX35 2004 Service Manual LAN-160
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> Di INFINITI FX35 2004 Service Manual LAN-160
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> Di](/manual-img/42/57021/w960_57021-3460.png)
LAN-160
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> Diagnose again. Refer to LAN-138, "Work Flow" .
NG >> Repair harness between data link connector and BCM.
BCM Circuit CheckAKS00C1E
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of BCM for damage, bend and loose connection (control module side and
harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check resistance between BCM harness connector M3 termi-
nals 39 (L) and 40 (R).
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installa-
tion of BCM" .
NG >> Repair harness between BCM and data link connector.
Steering Angle Sensor Circuit CheckAKS00C1F
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor
side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.6 (L) - 14 (R) : Approx. 54 - 66Ω
SKIA6868E
39 (L) - 40 (R) : Approx. 54 - 66Ω
SKIA6869E
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1. Disconnect steering angle sensor connector.
2. Check resistance INFINITI FX35 2004 Service Manual CAN SYSTEM (TYPE 4)
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1. Disconnect steering angle sensor connector.
2. Check resistance](/manual-img/42/57021/w960_57021-3461.png)
CAN SYSTEM (TYPE 4)
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect steering angle sensor connector.
2. Check resistance between steering angle sensor harness con-
nector M14 terminals 4 (L) and 5 (R).
OK or NG
OK >> Replace steering angle sensor.
NG >> Repair harness between steering angle sensor and data
link connector.
Unified Meter and A/C Amp. Circuit CheckAKS00C1G
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of unified meter and A/C amp. for damage, bend and loose connection
(meter side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect unified meter and A/C amp. connector.
2. Check resistance between unified meter and A/C amp. harness
connector M55 terminals 1 (L) and 11 (R).
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Repair harness between unified meter and A/C amp.
and harness connector M41.
ABS Actuator and Electric Unit (Control Unit) Circuit CheckAKS00C1H
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of ABS actuator and electric unit (control unit) for damage, bend and loose
connection (control unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.4 (L) - 5 (R) : Approx. 54 - 66Ω
SKIA6870E
1 (L) - 11 (R) : Approx. 54 - 66Ω
SKIA6871E
Page 3463 of 4449
![INFINITI FX35 2004 Service Manual LAN-162
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check resistance be INFINITI FX35 2004 Service Manual LAN-162
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check resistance be](/manual-img/42/57021/w960_57021-3462.png)
LAN-162
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check resistance between ABS actuator and electric unit (con-
trol unit) harness connector E56 terminals 11 (L) and 15 (R).
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Repair harness between ABS actuator and electric unit
(control unit) and harness connector E205.
IPDM E/R Circuit CheckAKS00C1I
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side
and harness side).
–IPDM E/R connector
–Harness connector E205
–Harness connector B5
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check resistance between IPDM E/R harness connector E9 ter-
minals 48 (L) and 49 (R).
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness between IPDM E/R and ABS actuator
and electric unit (control unit). 11 (L) - 15 (R) : Approx. 54 - 66Ω
SKIA6872E
48 (L) - 49 (R) : Approx. 108 - 132Ω
SKIA6873E
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CAN Communication Circuit CheckAKS00C1J
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnec INFINITI FX35 2004 Service Manual CAN SYSTEM (TYPE 4)
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CAN Communication Circuit CheckAKS00C1J
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnec](/manual-img/42/57021/w960_57021-3463.png)
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CAN Communication Circuit CheckAKS00C1J
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side,
unit side, sensor side, meter side, control unit side and harness side).
–ECM
–A/T assembly
–Display unit
–AWD control unit
–BCM
–Steering angle sensor
–Unified meter and A/C amp.
–ABS actuator and electric unit (control unit)
–IPDM E/R
–Between ECM and IPDM E/R
–Between ECM and A/T assembly
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–ECM connector
–Harness connector M82
–Display unit connector
–AWD control unit connector
–BCM connector
–Steering angle sensor connector
–Unified meter and A/C amp. connector
–Harness connector M41
2. Check continuity between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> GO TO 3.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between data link connector and ECM
Harness between data link connector and harness
connector M82
Harness between data link connector and display unit
Harness between data link connector and AWD control unit
Harness between data link connector and BCM
Harness between data link connector and steering angle sensor
Harness between data link connector and unified meter and A/C amp.
Harness between data link connector and harness connector M41 6 (L) - 14 (R) : Continuity should not exist.
SKIA6868E