Nissan Pathfinder (2005 year). Manual

Nissan Pathfinder (2005 year). Manual - part 324

CAN SYSTEM (TYPE 8)

LAN-291

[CAN]

LAN

2005 Pathfinder

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between data link connector M22 terminals 6 (L),
14 (P) and ground.

OK or NG

>> GO TO 10.

>> Check the following harnesses. If any harness is dam-

aged, repair the harness.

●

Harness between data link connector and harness
connector M31

●

Harness between data link connector and display control unit

●

Harness between data link connector and front air control

●

Harness between data link connector and steering angle sensor

●

Harness between data link connector and BCM

●

Harness between data link connector and combination meter

●

Harness between data link connector and transfer control unit

●

Harness between data link connector and harness connector M40

●

Harness between data link connector and harness connector M91

10.

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect following connectors.

–

Driver seat control unit connector

–

Harness connector P1

Check continuity between driver seat control unit harness con-
nector P2 terminals 3 (L) and 19 (P).

OK or NG

>> GO TO 11.

>> Repair harness between driver seat control unit and har-

ness connector P1.

11.

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between driver seat control unit harness connector
P2 terminals 3 (L), 19 (P) and ground.

OK or NG

>> GO TO 12.

>> Repair harness between driver seat control unit and har-

ness connector P1.

6 (L) – Ground

: Continuity should not exist.

14 (P) – Ground

: Continuity should not exist.

PKIA9872E

3 (L) – 19 (P)

: Continuity should not exist.

PKIA6842E

3 (L) – Ground

: Continuity should not exist.

19 (P) – Ground

: Continuity should not exist.

SKIB2818E

LAN-292

[CAN]

CAN SYSTEM (TYPE 8)

2005 Pathfinder

12.

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between harness connector B37 terminals 15 (L)
and 14 (P).

OK or NG

>> GO TO 13.

>> Repair harness between harness connector B37 and

harness connector B69.

13.

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between harness connector B37 terminals 15 (L),
14 (P) and ground.

OK or NG

>> GO TO 14.

>> Repair harness between harness connector B37 and

harness connector B69.

14.

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect ABS actuator and electric unit (control unit) connector and IPDM E/R connector.

Check continuity between IPDM E/R harness connector E122
terminals 39 (L) and 40 (P).

OK or NG

>> GO TO 15.

>> Check the following harnesses. If any harness is dam-

aged, repair the harness.

●

Harness between IPDM E/R and ABS actuator and
electric unit (control unit)

●

Harness between IPDM E/R and harness connector
E26

15 (L) – 14 (P)

: Continuity should not exist.

SKIB2819E

15 (L) – Ground

: Continuity should not exist.

14 (P) – Ground

: Continuity should not exist.

SKIB2820E

39 (L) – 40 (P)

: Continuity should not exist.

PKIA8141E

CAN SYSTEM (TYPE 8)

LAN-293

[CAN]

LAN

2005 Pathfinder

15.

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between IPDM E/R harness connector E122 termi-
nals 39 (L), 40 (P) and ground.

OK or NG

>> GO TO 16.

>> Check the following harnesses. If any harness is dam-

aged, repair the harness.

●

Harness between IPDM E/R and ABS actuator and
electric unit (control unit)

●

Harness between IPDM E/R and harness connector E26

16.

ECM AND 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 39 and 40.

OK or NG

>> GO TO 17.

>> Replace ECM and/or IPDM E/R.

17.

CHECK SYMPTOM

Fill in described symptoms on the column “Symptom” in the check sheet.

Connect all connectors, and then make sure that the symptom is reproduced.

OK or NG

>> GO TO 18.

>> Refer to

LAN-15, "Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"

39 (L) – Ground

: Continuity should not exist.

40 (P) – Ground

: Continuity should not exist.

SKIB2821E

94 – 86

: Approx. 108 – 132

Ω

39 – 40

: Approx. 108 – 132

Ω

LKIA0037E

LAN-294

[CAN]

CAN SYSTEM (TYPE 8)

2005 Pathfinder

18.

UNIT REPRODUCIBILITY INSPECTION

Perform the following procedure for each unit, and then perform reproducibility test.

Turn ignition switch OFF.

Disconnect the battery cable from the negative terminal.

Disconnect the unit connector.

Connect the battery cable to the negative terminal.

Make sure that the symptom filled in the “Symptom” of the check sheet is reproduced. (Do not confuse it
with the symptom related to removed unit.)

Make sure that the same symptom is reproduced.

–

TCM

–

Display control unit

–

Front air control

–

Steering angle sensor

–

BCM

–

Combination meter

–

Transfer control unit

–

Driver seat control unit

–

ABS actuator and electric unit (control unit)

–

ECM

–

IPDM E/R

Inspection results

Reproduced>>Install removed unit, and then check the other unit.
Not reproduced>>Replace removed unit.

IPDM E/R Ignition Relay Circuit Inspection

UKS003BS

Check the following. If no malfunction is found, replace the IPDM E/R.

●

IPDM E/R power supply circuit. Refer to

PG-26, "IPDM E/R Power/Ground Circuit Inspection"

●

Ignition power supply circuit. Refer to

PG-14, "IGNITION POWER SUPPLY — IGNITION SW. IN ON

AND/OR START"

LT-4

PRECAUTIONS

2005 Pathfinder

PRECAUTIONS

PFP:00011

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”

EKS009JA

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

General precautions for service operations

EKS009JB

●

Never work with wet hands.

●

Turn the lighting switch OFF before disconnecting and connecting the connector.

●

When checking the headlamp on/off operation, check it on vehicle and with the power connected to the
vehicle-side connector.

●

Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not
touch the headlamp bulb just after the headlamp is turned off, because it is very hot.

●

When the bulb has burned out, wrap it in a thick vinyl bag and discard. Do not break the bulb.

●

Leaving the bulb removed from the headlamp housing for a long period of time can deteriorate the perfor-
mance of the lens and reflector (dirt, clouding). Always prepare a new bulb and have it on hand when
replacing the bulb.

●

Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

Wiring Diagrams and Trouble Diagnosis

EKS009JC

When you read wiring diagrams, refer to the following:

●

Refer to

GI-15, "How to Read Wiring Diagrams"

in GI section.

●

Refer to

PG-4, "POWER SUPPLY ROUTING CIRCUIT"