Abs INFINITI FX35 2004 Service Manual

CAN SYSTEM (TYPE 4)
LAN-165
[CAN]
C
D
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F
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MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
6. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector and harness connector E205.
2. Check continuity between ABS actuator and electric unit (control
unit) harness connector E56 terminals 11 (L) and 15 (R).
OK or NG
OK >> GO TO 7.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.

Harness between ABS actuator and electric unit (con-
trol unit) and harness connector E211

Harness between ABS actuator and electric unit (con-
trol unit) and harness connector E205
7. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector E56 terminals 11 (L), 15 (R) and ground.
OK or NG
OK >> GO TO 8.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.

Harness between ABS actuator and electric unit (con-
trol unit) and harness connector E211

Harness between ABS actuator and electric unit (control unit) and harness connector E205
8. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B5 terminals 3 (L) and
10 (R).
OK or NG
OK >> GO TO 9.
NG >> Repair harness between harness connector B5 and har-
ness connector B5.
9. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B5 terminals 3 (L), 10
(R) and ground.
OK or NG
OK >> GO TO 10.
NG >> Repair harness between harness connector B5 and har-
ness connector B5. 11 (L) - 15 (R) : Continuity should not exist.
SKIA6872E
11 (L) - Ground : Continuity should not exist.
15 (R) - Ground : Continuity should not exist.
SKIA6876E
3 (L) - 10 (R) : Continuity should not exist.
SKIA6877E
3 (L) - Ground : Continuity should not exist.
10 (R) - Ground : Continuity should not exist.
SKIA6878E

LAN-172
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
Work FlowAKS00C1Q
1. When there are no indications of “BCM”, “METER A/C AMP”, “AUTO DRIVE POS.” or “IPDM E/R” on
“SELECT SYSTEM” display of CONSULT-II, print the “SELECT SYSTEM”.
2. Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “A/T”, “ALL MODE AWD/4WD”, “BCM”,
“METER A/C AMP”, “ABS”, “AUTO DRIVE POS.”, and “IPDM E/R” displayed on CONSULT-II.
3. Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “A/T”, “ALL MODE AWD/4WD”, “BCM”,
“METER A/C AMP”, “ABS”, “AUTO DRIVE POS.”, and “IPDM E/R” displayed on CONSULT-II.
4. Attach the printed sheet of “SELECT SYSTEM”, “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT
MNTR” onto the check sheet. Refer to LAN-174, "
CHECK SHEET" .
5. Based on the indications of “SELECT SYSTEM” and the results of “CAN DIAG SUPPORT MNTR”, put
marks “v” onto the items with “No indication”, “NG”, or “UNKWN” in the check sheet table. Refer to LAN-
174, "CHECK SHEET" .
NOTE:

If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” as “CAN DIAG SUPPORT MNTR” for the diag-
nosed control unit, replace the control unit.

The “CAN DIAG SUPPORT MNTR” items, which are not in check sheet table, are not related to diag-
nostic procedure on service manual.
So it is not necessary to check the status of “CAN DIAG SUPPORT MNTR” items which are not indi-
cated in check sheet table.
6. Check CAN communication line of the integrated display system. Refer to AV- 8 5 , "
CAN Communication
Line Inspection" .
7. Attach the CAN DIAG MONITOR check sheet onto the check sheet. Refer to LAN-174, "
CHECK SHEET"
.
PKIA2093E
PKIA8260E
PKIA8343E

LAN-178
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
Case 3
Check harness between unified meter and A/C amp. and ABS actuator and electric unit (control unit). Refer to
LAN-193, "
Circuit Check Between Unified Meter and A/C Amp. and ABS Actuator and Electric Unit (Control
Unit)" .
PKIA8007E
SKIA6617E

CAN SYSTEM (TYPE 5)
LAN-179
[CAN]
C
D
E
F
G
H
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MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
Case 4
Check harness between ABS actuator and electric unit (control unit) and driver seat control unit. Refer to LAN-
194, "Circuit Check Between ABS Actuator and Electric Unit (Control Unit) and Driver Seat Control Unit" .
PKIA8008E
SKIA6618E

LAN-188
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
Case 13
Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-198, "ABS Actuator and Electric Unit
(Control Unit) Circuit Check" .
PKIA8017E
SKIA6627E

CAN SYSTEM (TYPE 5)
LAN-193
[CAN]
C
D
E
F
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L
MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
Circuit Check Between Unified Meter and A/C Amp. and ABS Actuator and Elec-
tric Unit (Control Unit)
AKS00C1T
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-172, "
Work Flow" .
NG >> Repair harness.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

LAN-194
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
Circuit Check Between ABS Actuator and Electric Unit (Control Unit) and Driver
Seat Control Unit
AKS00C1U
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 E205
–Harness connector B5
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector and harness connector E205.
2. Check continuity between ABS actuator and electric unit (control
unit) harness connector E56 terminals 11 (L), 15 (R) and har-
ness connector E205 terminals 3 (L), 10 (R).
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B8.
2. Check continuity between harness connector B5 terminals 3 (L),
10 (R) and harness connector B8 terminals 14 (L), 15 (R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to
LAN-172, "
Work Flow" .
NG >> Repair harness.
ECM Circuit CheckAKS00C1V
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.11 (L) - 3 (L) : Continuity should exist.
15 (R) - 10 (R) : Continuity should exist.
SKIA6880E
3 (L) - 14 (L) : Continuity should exist.
10 (R) - 15 (R) : Continuity should exist.
SKIA6881E

LAN-198
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
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 CheckAKS00C22
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 CheckAKS00C23
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

CAN SYSTEM (TYPE 5)
LAN-199
[CAN]
C
D
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F
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L
MA
B
LAN
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.
Driver Seat Control Unit Circuit CheckAKS00C24
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 unit side and
harness side).
–Driver seat control unit connector
–Harness connector B151
–Harness connector B8
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check resistance between driver seat control unit harness con-
nector B152 terminals 14 (OR) and 15 (SB).
OK or NG
OK >> Replace driver seat control unit.
NG >> Repair harness between driver seat control unit and har-
ness connector B5. 11 (L) - 15 (R) : Approx. 54 - 66Ω
SKIA6872E
14 (OR) - 15 (SB) : Approx. 54 - 66Ω
SKIA6882E

LAN-200
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
IPDM E/R Circuit CheckAKS00C25
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 harness con-
nector B8.
CAN Communication Circuit CheckAKS00C26
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, control unit side, sensor side, meter 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)
–Driver seat 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.48 (L) - 49 (R) : Approx. 108 - 132Ω
SKIA6873E