ipdm INFINITI FX35 2004 Service Manual

LAN-190
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
Case 15
Check IPDM E/R circuit. Refer to LAN-200, "IPDM E/R Circuit Check" .
PKIA8019E
SKIA6629E

CAN SYSTEM (TYPE 5)
LAN-191
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
Case 16
Check CAN communication circuit. Refer to LAN-200, "CAN Communication Circuit Check" .
Case 17
Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-205, "IPDM E/R Ignition Relay
Circuit Check" .
PKIA8020E
PKIA8022E

LAN-192
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
Case 18
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-205, "IPDM E/R Ignition Relay
Circuit Check" .
Circuit Check Between TCM and Data Link ConnectorAKS00C1R
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-172, "
Work Flow" .
NG >> Repair harness.
Circuit Check Between Data Link Connector and Unified Meter and A/C Amp.AKS00C1S
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-172, "
Work Flow" .
NG >> Repair harness.
PKIA8021E
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

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

LAN-204
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2004 November 2004 FX35/FX45
10. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit harness con-
nector B152 terminals 14 (OR) and 15 (SB).
OK or NG
OK >> GO TO 11.
NG >> Repair harness between driver seat control unit and har-
ness connector B151.
11 . CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between driver seat control unit harness connector
B152 terminals 14 (OR), 15 (SB) and ground.
OK or NG
OK >> GO TO 12.
NG >> Repair harness between driver seat control unit and har-
ness connector B151.
12. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector E9 ter-
minals 48 (L) and 49 (R).
OK or NG
OK >> GO TO 13.
NG >> Repair harness between IPDM E/R and harness con-
nector E205.
13. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between IPDM E/R harness connector E9 termi-
nals 48 (L), 49 (R) and ground.
OK or NG
OK >> GO TO 14.
NG >> Repair harness between IPDM E/R and harness con-
nector E205. 14 (OR) - 15 (SB) : Continuity should not exist.
SKIA6882E
14 (OR) - Ground : Continuity should not exist.
15 (SB) - Ground : Continuity should not exist.
SKIA6883E
48 (L) - 49 (R) : Continuity should not exist.
SKIA6873E
48 (L) - Ground : Continuity should not exist.
49 (R) - Ground : Continuity should not exist.
SKIA6879E

CAN SYSTEM (TYPE 5)
LAN-205
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
14. ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION
Check components inspection. Refer to LAN-205, "
ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION" .
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to LAN-172, "Work Flow" .
NG >> Replace ECM and/or IPDM E/R.
IPDM E/R Ignition Relay Circuit CheckAKS00C27
Check the following. If no malfunction is found, replace the IPDM E/R.

IPDM E/R power supply circuit. Refer to PG-28, "IPDM E/R Power/Ground Circuit Inspection" .

Ignition power supply circuit. Refer to PG-12, "IGNITION POWER SUPPLY - IGNITION SW. IN “ON”
AND/OR “START”" .
Component InspectionAKS00C28
ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION

Remove ECM and IPDM E/R from vehicle.

Check resistance between ECM terminals 94 and 86.

Check resistance between IPDM E/R terminals 48 and 49.
Unit TerminalResistance value (Ω)
(Approx.)
ECM 94 - 86
108 - 132
IPDM E/R 48 - 49
LKIA0037E

CAN SYSTEM (TYPE 6)
LAN-211
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
Work FlowAKS00C2D
1. When there are no indications of “AIR PRESSURE MONITOR”, “INTELLIGENT KEY”, “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”, “AIR PRESSURE MONITOR”, “ALL
MODE AWD/4WD”, “ICC”, “INTELLIGENT KEY”, “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”, “AIR PRESSURE MONITOR”,
“ALL MODE AWD/4WD”, “ICC”, “INTELLIGENT KEY”, “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-213, "
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-
213, "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 navigation system. Refer to AV- 1 5 8 , "
CAN Communication Line
Check" .
PKIA2093E
PKIA8260E
PKIA8343E

LAN-234
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2004 November 2004 FX35/FX45
Case 19
Check IPDM E/R circuit. Refer to LAN-247, "IPDM E/R Circuit Check" .
PKIA8044E
SKIA6648E

LAN-236
[CAN]
CAN SYSTEM (TYPE 6)
Revision: 2004 November 2004 FX35/FX45
Case 21
Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to LAN-253, "IPDM E/R Ignition Relay
Circuit Check" .
PKIA8047E

CAN SYSTEM (TYPE 6)
LAN-237
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2004 November 2004 FX35/FX45
Case 22
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-253, "IPDM E/R Ignition Relay
Circuit Check" .
Circuit Check Between TCM and Data Link ConnectorAKS00C2E
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-211, "
Work Flow" .
NG >> Repair harness.
PKIA8046E
14H (L) - 6 (L) : Continuity should exist.
15H (R) - 14 (R) : Continuity should exist.
SKIA6861E