NISSAN X-TRAIL 2001 Service Repair Manual

CAN COMMUNICATION LINE
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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.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
On Board Diagnosis LogicECS004UK
Self-Diagnosis Code Confirmation ProcedureECS004UL
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”.
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.
WITHOUT CONSULT-II
1. Turn ignition switch “ON”.
2. Wait at least 6 seconds or start engine and wait at least 6 sec-
onds.
3. Perform self-diagnosis.
Refer to AT- 2 5 3 , "
SELF-DIAGNOSTIC PROCEDURE (WITH-
OUT CONSULT-II)" .
Te r m i -
nal No.Wire color Item ConditionJudgement
standard
(Approx.)
5QR20DE: B/W
QR25DE: W/BCAN-H (high) — —
6 L/R CAN-L (low) — —
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
SAT599J

AT-404
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CAN COMMUNICATION LINE
Wiring Diagram — AT — CAN
ECS004UM
TCWA0144E

CAN COMMUNICATION LINE
AT-405
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Diagnostic ProcedureECS004UN
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. The “CON COMM CIRCUIT” is detected.
Ye s o r N o ?
Yes >> Print out CONSULT-II screen, GO TO 2.
NG >>INSPECTION END
2.CHECK CAN COMMUNICATION SIGNALS
With CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “CAN COMM SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
>> Print out CONSULT-II screen, go to LAN-5, "
CAN SYSTEM (FOR A/T MODELS)"
CAN Communication Signals
PCIA0061E
Normal conditions Abnormal conditions (examples)
CAN COMM: OK CAN COMM: OK
CAN CIRC 1: OK CAN CIRC 1: UNKWN
CAN CIRC 2: OK CAN CIRC 2: UNKWN
CAN CIRC 3: OK CAN CIRC 3: UNKWN
CAN CIRC 4: OK CAN CIRC 4: UNKWN
CAN CIRC 5: UNKWN CAN CIRC 5: UNKWN

AT-406
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A/T SHIFT LOCK SYSTEM
A/T SHIFT LOCK SYSTEM
PFP:34950
DescriptionECS00405
●The mechanical key interlock mechanism also operates as a shift lock:
With the key switch turned to ON, the selector lever cannot be shifted from “P” (parking) to any other posi-
tion unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from “P” to any other position.
The key cannot be removed unless the selector lever is placed in “P”.
●The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and slider located inside the key cylinder.
Shift Lock System Electrical Parts LocationECS00406
SCIA0781E

A/T SHIFT LOCK SYSTEM
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Wiring Diagram — SHIFT —ECS00407
TCWA0055E

AT-408
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A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
ECS00408
SYMPTOM 1:
●Selector lever cannot be moved from “P” position with key in ON position and brake pedal
applied.
●Selector lever can be moved from “P” position with key in ON position and brake pedal released.
●Selector lever can be moved from “P” position when key is removed from key cylinder.
SYMPTOM 2:
●Ignition key cannot be removed when selector lever is set to “P” position.
●Ignition key can be removed when selector lever is set to any position except “P”.
1. CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair key interlock cable. Refer to AT- 4 1 2 , "
KEY INTERLOCK CABLE" .
2. CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK >> GO TO 3.
NG >> Check selector lever. Refer to AT- 4 1 6 , "
Park/Neutral Position (PNP) Switch Adjustment" .
3. CHECK POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between A/T device harness connector M58 ter-
minal 5 (G) and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING ITEM
Check the following items:
1. Harness for short or open between ignition switch and A/T device harness terminal 5
2. Fuse
3. Ignition switch (Refer to PG-2, "
POWER SUPPLY ROUTING" .)
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.Voltage: Battery voltage
SCIA1165E

A/T SHIFT LOCK SYSTEM
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5.CHECK INPUT SIGNAL A/T DEVICE
Turn ignition switch to “OFF” position.
●Check voltage between A/T device harness connector M58 terminal 7 and ground.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING ITEM
Check the following items:
1. Harness for short or open between battery and stop lamp switch harness connector 1
2. Harness for short or open between stop lamp switch harness connector 2 and A/T device harness con-
nector 7
3. Fuse
4. Stop lamp switch
–Check continuity between stop lamp switch harness connector M12 terminals 1 (R/Y) and 2 (P).
Check stop lamp switch after adjusting brake pedal — refer to BR-6, "
BRAKE PEDAL" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts. Voltage:
Brake pedal depressed:
Battery voltage
Brake pedal released:
0V
SCIA1166E
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A/T SHIFT LOCK SYSTEM
7. CHECK GROUND CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness connector M58 terminal 6 (B) and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
8. CHECK PARK POSITION SWITCH AND RELAY CIRCUIT (COIL SIDE)
Check continuity between A/T device harness connector M58 terminals 6 (B) and 7 (P).
OK or NG
OK >> GO TO 9.
NG >> Replace park position switch or relay.
9. CHECK SHIFT LOCK SOLENOID AND RELAY CIRCUIT (POINT SIDE)
1. Connect A/T device harness connector.
2. Turn ignition switch to “ON” position.
3. Check operation sound.
OK or NG
OK >> GO TO 10.
NG >> Replace shift lock solenoid or relay.Continuity should exist.
SCIA0784E
SAT665K
Condition Brake pedal Operation sound
When ignition switch is turned to
“ON” position and selector lever
is set in “P” position.Depressed Yes
Released No

A/T SHIFT LOCK SYSTEM
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10.CHECK SHIFT LOCK OPERATION
1. Reconnect shift lock harness connector.
2. Turn ignition switch from “OFF” to “ON” position. (Do not start engine.)
3. Recheck shift lock operation.
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 . CHECK A/T DEVICE INSPECTION
1. Perform A/T device input/output signal inspection test.
2. If NG, recheck harness connector connection.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

AT-412
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KEY INTERLOCK CABLE
KEY INTERLOCK CABLE
PFP:34908
ComponentsECS00409
CAUTION:
●Install key interlock cable in such a way that it will not be damaged by sharp bends, twists or inter-
ference with adjacent parts.
●After installing key interlock cable to control device, make sure that casing cap and bracket are
firmly secured in their positions.
RemovalECS0040A
1. Unlock slider by squeezing lock tabs on slider from adjuster
holder and remove interlock rod from cable.
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