2005 NISSAN X-TRAIL Harness and wiring

AT-1
AUTOMATIC TRANSAXLE
C TRANSMISSION/TRANSAXLE
CONTENTS
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AUTOMATIC TRANSAXLE
TROUBLE DIAGNOSIS — INDEX ............................. 6
Alphabetical & P No. Index for DTC ......................... 6
PRECAUTIONS .......................................................... 8
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 8
Precautions for On Board Diagnostic (EURO-OBD)
System of A/T and Engine — Euro-OBD — ............. 8
Precautions for Trouble Diagnosis ........................... 8
Precautions for Harness Repair ............................... 8
Precautions .............................................................. 9
Service Notice or Precautions ................................ 10
Wiring Diagrams and Trouble Diagnosis ................. 11
PREPARATION ......................................................... 12
Special Service Tools ............................................. 12
Commercial Service Tools ...................................... 15
A/T FLUID ................................................................. 16
Checking A/T Fluid ................................................. 16
Changing A/T Fluid ................................................ 17
OVERALL SYSTEM ................................................. 18
Cross-Sectional View ............................................. 18
Hydraulic Control Circuit ........................................ 19
A/T Electrical Parts Location .................................. 20
Circuit Diagram ...................................................... 21
Shift Mechanism ..................................................... 22
TCM Function ......................................................... 31
CAN Communication .............................................. 32
Input/Output Signal of TCM .................................... 34
Line Pressure Control ............................................ 34
Shift Control ........................................................... 35
Lock-Up Control ..................................................... 36
Engine Brake Control (Overrun Clutch Control) ..... 37
Control Valve .......................................................... 39
EURO-OBD
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION .......................................................................... 40
Introduction ............................................................ 40
EURO-OBD Function for A/T System .................... 40One or Two Trip Detection Logic of EURO-OBD .... 40
EURO-OBD Diagnostic Trouble Code (DTC) ......... 40
Malfunction Indicator (MI) ....................................... 44
CONSULT-II ............................................................ 44
Diagnostic Procedure Without CONSULT-II ........... 52
TROUBLE DIAGNOSIS — INTRODUCTION ........... 57
Introduction ............................................................. 57
Work Flow ............................................................... 61
TROUBLE DIAGNOSIS — BASIC INSPECTION .... 64
A/T Fluid Check ...................................................... 64
Stall Test ................................................................. 65
Line Pressure Test .................................................. 68
Road Test ............................................................... 70
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION .......................................................................... 85
Symptom Chart ....................................................... 85
TCM Terminals and Reference Value ..................... 94
DTC U1000 CAN COMMUNICATION LINE .............. 97
Description .............................................................. 97
On Board Diagnosis Logic ...................................... 97
Possible Cause ....................................................... 97
DTC Confirmation Procedure ................................. 97
Wiring Diagram — AT — CAN ................................ 98
Diagnostic Procedure ............................................. 99
DTC P0705 PARK/NEUTRAL POSITION (PNP)
SWITCH ..................................................................100
Description ............................................................100
On Board Diagnosis Logic ....................................100
Possible Cause .....................................................100
DTC Confirmation Procedure ...............................100
Wiring Diagram — AT — PNP/SW .......................102
Diagnostic Procedure ...........................................103
DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................106
Description ............................................................106
On Board Diagnosis Logic ....................................106
Possible Cause .....................................................106
DTC Confirmation Procedure ...............................106
Wiring Diagram — AT — FTS ..............................108

AT-8
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ECS004Q0
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
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.
Precautions for On Board Diagnostic (EURO-OBD) System of A/T and Engine —
Euro-OBD —
ECS004Q1
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch “OFF” and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MI to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MI to light up due to a short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to a malfunction of the EGR system or fuel injection system, etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Precautions for Trouble DiagnosisECS004VN
CAN SYSTEM

Do not apply voltage of 7.0V or higher to the measurement terminals.

Use the tester with its open terminal voltage being 7.0V or less.
Precautions for Harness RepairECS004VO
CAN SYSTEM

Solder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in)]
PKIA0306E

PRECAUTIONS
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Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:

The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.

The threads in one or more of the converter bolt holes are damaged.

Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.

Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.
EURO-OBD SELF-DIAGNOSIS — EURO-OBD —

A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the O/D OFF indicator lamp or the malfunction indicator (MI). Refer to the table on
AT- 4 5 , "
SELF-DIAGNOSTIC RESULT TEST MODE" for the indicator used to display each self-diagnostic
result.

The self-diagnostic results indicated by the MI are automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure “HOW TO ERASE DTC” on AT- 4 2 , "
HOW TO ERASE DTC" to com-
plete the repair and avoid unnecessary blinking of the MI.

The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when
the O/D OFF indicator lamp does not indicate any malfunctions.
–PNP switch
–A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of EURO-OBD, refer to EC-52, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM" .

Certain systems and components, especially those related to EURO-OBD, may use a new style
slide-locking type harness connector.
For description and how to disconnect, refer to PG-74, "
HARNESS CONNECTOR" .
Wiring Diagrams and Trouble DiagnosisECS004Q4
When you read wiring diagrams, refer to the following:

GI-14, "How to Read Wiring Diagrams"

PG-2, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"

GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident"

DTC U1000 CAN COMMUNICATION LINE
AT-97
[EURO-OBD]
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DTC U1000 CAN COMMUNICATION LINEPFP:31940
DescriptionECS008CZ
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicECS008D0
Possible CauseECS00CUO
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureECS008D1
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Wait at least 6 seconds or start engine and wait for at least 6
seconds.
4. If DTC is detected, go to AT- 9 9 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”
WITHOUT CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Wait at least 6 seconds or start engine and wait at least 6 seconds.
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If DTC is detected, go to AT- 9 9 , "
Diagnostic Procedure" .
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
:CAN COMM CIRCUIT
When a malfunction is detected in CAN
communication line.

Harness or connectors
(CAN communication line is open or
shorted.) :11th judgement flicker
SAT014K
SCIA4673E

AT-118
[EURO-OBD]
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

6. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (POWER)
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminals and revolu-
tion sensor harness connector terminals. Refer to AT- 2 1 , "
Circuit
Diagram" and AT- 3 9 5 , "Wiring Diagram — AT — MAIN" .
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> Fuse or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminal and revolu-
tion sensor harness connector terminal.
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK DTC
Perform AT- 11 2 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
Item Connector No. Terminal No.
(Wire color) Continuity
TCM F46 10 (BR/W)
Ye s
Revolution sensor F15 1 (Y)
Item Connector No. Terminal No.
(Wire color) Continuity
TCM F46 19 (BR/W)
Ye s
Revolution sensor F15 1 (Y)
SCIA2617E
Item Connector No. Terminal No.
(Wire color) Continuity
TCM F47 42 (B)
Ye s
Revolution sensor F15 3 (B)
SCIA2618E

AT-204
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS

O/D OFF Indicator Lamp Does Not Come OnECS004SU
SYMPTOM:
O/D OFF indicator lamp does not come on for about 2 seconds
when turning ignition switch to “ON”.
1. CHECK TCM POWER SOURCE
1. Turn ignition switch to ON. (Do not start engine.)
2. Check voltage between TCM connector terminals 10, 19, 28 and ground.
3. Turn ignition switch to OFF.
4. Check voltage between TCM connector terminal 28 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following items:

Harness for short or open between ignition switch and
TCM connector terminals 10, 19 and 28

Refer to AT- 3 9 5 , "Wiring Diagram — AT — MAIN" .

Ignition switch and fuse Refer to PG-2, "POWER SUPPLY ROUTING" .
2. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch to OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM connector terminals 25, 48 and
ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. Refer to AT- 3 9 5 , "
Wiring Dia-
gram — AT — MAIN" .
3. CHECK COMBINATION METERS SYSTEM
Check combination meters system. Refer to DI-14, "
Combination Meter" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
SCIA4281E
Voltage: Battery voltage
Voltage: Battery voltage
SCIA0713E
Continuity should exist.
SCIA0766E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-291
[EXC.F/EURO-OBD]
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O/D OFF Indicator Lamp Does Not Come OnECS00EBE
SYMPTOM:
O/D OFF indicator lamp does not come on for about 2 seconds
when turning ignition switch to “ON”.
1. CHECK TCM POWER SOURCE
1. Turn ignition switch to ON. (Do not start engine.)
2. Check voltage between TCM connector terminals 10, 19, 28 and ground.
3. Turn ignition switch to OFF.
4. Check voltage between TCM connector terminal 28 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following items:

Harness for short or open between ignition switch and
TCM connector terminals 10, 19 and 28

Refer to AT- 3 9 5 , "Wiring Diagram — AT — MAIN" .

Ignition switch and fuse Refer to PG-2, "POWER SUPPLY ROUTING" .
2. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch to OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM connector terminals 25, 48 and
ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. Refer to AT- 3 9 5 , "
Wiring Dia-
gram — AT — MAIN" .
3. CHECK COMBINATION METERS SYSTEM
Check combination meters system. Refer to DI-14, "
Combination Meter" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
SCIA4281E
Voltage: Battery voltage
Voltage: Battery voltage
SCIA0713E
Continuity should exist.
SCIA0766E

CAN COMMUNICATION LINE
AT-329
[ALL]
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[ALL]CAN COMMUNICATION LINEPFP:31940
DescriptionECS004UJ
CAN (Control Area Network) is a serial communication line for real time application. It is an on-vehicle multi-
plex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicECS004UK
Possible CauseECS00CT9
Harness or connector
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureECS004UL
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Wait at least 6 seconds or start engine and wait for at least 6
seconds.
4. If DTC is detected, go to AT- 3 3 1 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Wait at least 6 seconds or start engine and wait at least 6 sec-
onds.
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If DTC is detected, go to AT- 3 3 1 , "
Diagnostic Procedure" .
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: CAN COMM CIRCUIT
When a malfunction is detected in CAN
communication line.

Harness or connectors
(CAN communication line is open or
shorted.)
: 11th judgement flicker
SAT014K
SCIA4673E