2005 NISSAN X-TRAIL check

AT-238
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS

DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out P/N, R, D, 2 and 1 position switches moving selector lever to each position.
Check that the signal of the selector lever position is indicated
properly.
OK or NG
OK >> GO TO 3.
NG >> Check the following items:

PNP switch (Refer to AT- 2 4 0 , "COMPONENT
INSPECTION" .)

Harness for short or open between ignition switch and
PNP switch

Harness for short or open between PNP switch and
TCM

Diode (P, N positions)
2. CHECK PNP SWITCH CIRCUIT (WITHOUT CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to ON. (Do not start engine.)
2. Check voltage between TCM terminals 26, 27, 34, 35, 36 and
ground while moving selector lever through each position.
OK or NG
OK >> GO TO 3.
NG >> Check the following items:

PNP switch (Refer to AT- 2 4 0 , "COMPONENT
INSPECTION" .)

Harness for short or open between ignition switch and
PNP switch

Harness for short or open between PNP switch and TCM

Diode (P, N positions)
SAT701J
Voltage:
B: Battery voltage
0: 0V
Lever positionTerminal No.
36 35 34 27 26
P, N B0000
R0B000
D00B00
2000B0
10000B
SCIA0777E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-239
[EURO-OBD]
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3. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch to ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “OVERDRIVE SWITCH”.
Check the signal of the overdrive control switch is indicated properly.
(Overdrive control switch ON displayed on CONSULT-II means
overdrive OFF.)
OK or NG
OK >> GO TO 4.
NG >> Check the following items:

Overdrive control switch (Refer to AT- 2 4 0 , "COMPO-
NENT INSPECTION" .)

Harness for short or open between Combination
meter and overdrive control switch

Harness of ground circuit for overdrive control switch
for short or open

Combination Meter (Refer to DI-4, "COMBINATION METERS" .)
4. CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIRCUIT
(WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “CLOSED THL/SW” and “W/O THRL-SW” depressing and releasing accelerator pedal.
Check the signal of throttle position signal is indicated properly.
OK or NG
OK >> GO TO 5.
NG >> Check the following items. If any items are damaged, repair or replace damaged parts.

Accelerator pedal position sensor — Refer to AT- 1 7 3 , "DTC P1705 ACCELERATOR PEDAL
POSITION (APP) SENSOR" .

Harness for short or open between accelerator pedal position sensor and ECM
SAT645J
Accelerator pedal
conditionData monitor
CLOSED THL/SW W/O THRL-SW
Released ON OFF
Fully depressed OFF ON
SAT646J

AT-240
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS

5. CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIRCUIT
(WITHOUT CONSULT-II)
Without CONSULT-II
Check the following items:

Accelerator pedal position sensor — Refer to AT- 1 7 3 , "DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR" .

Harness for short or open between accelerator pedal position sensor and ECM
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform AT- 5 2 , "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" .
OK or NG
OK >>INSPECTION END
NG >>

Perform TCM input/output signal inspection. Refer to AT- 9 4 , "TCM Terminals and Reference
Va l u e" .

If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
COMPONENT INSPECTION
Overdrive Control Switch

Check continuity between two terminals 1 and 2.
Switch position Continuity
ON No
OFF Yes
SCIA4647E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-241
[EURO-OBD]
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PNP Switch
1. Check continuity between terminals 1 and 2, and between termi-
nals 3 and 4, 5, 6, 7, 8, 9 while moving manual shaft through
each position.
2. If NG, check again with manual control cable disconnected from
manual shaft of A/T assembly. Refer to step 1.
3. If OK on step 2, adjust manual control cable. Refer to AT- 4 0 9 ,
"CONTROL CABLE ADJUSTMENT" .
4. If NG on step 2, remove PNP switch from A/T and check conti-
nuity of PNP switch terminals. Refer to step 1.
5. If OK on step 4, adjust PNP switch. Refer to AT- 4 0 9 , "
CON-
TROL CABLE ADJUSTMENT" .
6. If NG on step 4, replace PNP switch.
Lever position Terminal No.
P 3 — 7 1 — 2
R 3 — 8
N 3 — 9 1 — 2
D 3 — 6
2 3 — 5
1 3 — 4
SCIA0754E
SAT089JA

AT-242
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

[EXC.F/EURO-OBD]ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONPFP:00000
CONSULT-IIECS004NW
After performing AT- 2 4 2 , "SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)" , place check marks for
results on the AT- 2 5 2 , "
DIAGNOSTIC WORKSHEET" . Reference pages are provided following the items.
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSULT-II at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
FUNCTION
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
1. Turn on CONSULT-II and touch “A/T” for TCM self-diagnosis.
If A/T is not displayed, check TCM power supply and ground cir-
cuit. Refer to AT- 2 8 6 , "
TCM Terminals and Reference Value" . If
result is NG, refer to PG-2, "
POWER SUPPLY ROUTING" .
Diagnostic test mode Function Reference page
Work supportThis mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II.—
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 2 4 2
Data monitor Input/Output data in the ECM can be read.AT- 2 4 4
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read. —
Function testConducted by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
DTC work support Select the operating condition to confirm Diagnosis Trouble Codes.AT- 4 7
TCM part number TCM part number can be read. —
SAT014K

AT-246
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

4. Touch “ERASE”. (The self-diagnostic results will be erased.)
Diagnostic Procedure Without CONSULT-IIECS004NX
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)
1. CHECK O/D OFF INDICATOR LAMP
1. Selector lever in P position.
2. Turn ignition switch to OFF.
3. Wait 5 seconds.
4. Set overdrive control switch to ON.
5. Turn ignition switch to ON. (Do not start engine.)
Does O/D OFF indicator lamp come on for about 2 seconds?
YES >> GO TO 2.
NO >> GO TO AT- 2 9 1 , "
O/D OFF Indicator Lamp Does Not
Come On" .
2. JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch to OFF.
2. Move selector lever to D.
3. Set overdrive control switch to OFF.
4. Turn ignition switch to ON. (Do not start engine.)
Wait more than 2 seconds after turning ignition switch ON.
>> GO TO 3.
SAT970J
SAT774B
SCIA5468E
SAT653E

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-247
[EXC.F/EURO-OBD]
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3. JUDGEMENT PROCEDURE STEP 2
1. Move selector lever to 2 position.
2. Set overdrive control switch to ON.
>> GO TO 4.
4. JUDGEMENT PROCEDURE STEP 3
1. Move selector lever to 1 position.
2. Set overdrive control switch to OFF.
>> GO TO 5.
5. JUDGEMENT PROCEDURE STEP 4
1. Depress accelerator pedal fully and release it.
>> GO TO 6.
6. CHECK SELF-DIAGNOSIS CODE
Check O/D OFF indicator lamp. Refer to AT- 2 4 8 , "
JUDGEMENT OF
SELF-DIAGNOSIS CODE" .
>>DIAGNOSIS END
SAT780B
SAT781B
SAT981F
SCIA5468E

TROUBLE DIAGNOSIS — INTRODUCTION
AT-251
[EXC.F/EURO-OBD]
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TROUBLE DIAGNOSIS — INTRODUCTIONPFP:00000
IntroductionECS004TF
The TCM receives a signal from the vehicle speed sensor, throttle
position sensor or PNP switch and provides shift control or lock-up
control via A/T solenoid valves.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, etc.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only, may not find the cause of the problems. A road
test with CONSULT-II or a circuit tester connected should be per-
formed. Follow the “Work Flow”. Refer to AT- 6 1
.
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a drive ability complaint. The cus-
tomer can supply good information about such problems, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic Worksheet” like the exam-
ple (AT- 5 8
) should be used.
Start your diagnosis by looking for “conventional” problems first. This
will help troubleshoot drive ability problems on an electronically con-
trolled engine vehicle.
Also check related Service bulletins for information.
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