2003 NISSAN X-TRAIL engine

ENGINE SPEED SIGNAL
AT-383
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

Wiring Diagram — AT — ENGSSECS004UD
TCWA0232E

AT-384
[ALL]
ENGINE SPEED SIGNAL

TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL
Diagnostic ProcedureECS004UE
1. CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control. Check ignition signal circuit condi-
tion.
OK or NG
OK >> GO TO 2.
NG >> Check ignition signal circuit for engine control. Refer to EC-417, "
IGNITION SIGNAL" (WITH
EURO-OBD) or EC-798, "
IGNITION SIGNAL" (WITHOUT EURO-OBD).
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
39 L/OREngine speed
signal
and
Refer to EC-95, "
ECM INSPECTION TABLE"
(WITH EURO-OBD) or EC-543, "
ECM
INSPECTION TABLE" (WITHOUT EURO-
OBD).—

ENGINE SPEED SIGNAL
AT-385
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

2. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out the value of “ENGINE SPEED”.
Check engine speed changes according to throttle position.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 39 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
SAT014K
SAT645J
Name Connec-
tor No. Terminal
No. (Wire
color) ConditionJudgement standard
(Approx.)
Engine
speed signal F47 39(L/OR) -
Ground—Refer to EC-543, "
ECM
INSPECTION TABLE"
(WITHOUT EURO-OBD).
SCIA3265E

AT-386
[ALL]
ENGINE SPEED SIGNAL

3. CHECK HARNESS BETWEEN TCM AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector and TCM connector.
3. Check continuity between ECM connector and TCM connector.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between body ground and transaxle
assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK DTC
Perform Refer to AT- 3 8 2 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection. Refer to AT- 9 4 , "
TCM Terminals and Reference
Va l u e" .
2. GO TO 5.
5. CHECK TCM
1. Check TCM input/output signal. Refer to AT- 9 4 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Item Connector No.Terminal No.
(Wire color)Continuity
TCM F47 39 (L/OR)
Ye s
ECM M118 103 (L/OR)
SCIA3269E

AT-388
[ALL]
LINE PRESSURE SOLENOID VALVE

2. Depress accelerator pedal completely and wait at least 5 sec-
onds.
3. If check result is NG, go to AT- 3 9 0 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine.
2. With brake pedal depressed, shift the lever from P → N → D → N → P positions.
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 3 9 0 , "
Diagnostic Procedure" .
SCIA5358E
SCIA5600E

AT-390
[ALL]
LINE PRESSURE SOLENOID VALVE

TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL
Diagnostic ProcedureECS004UH
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “LINE PRES DTY” while driving.
Check the value changes according to driving speed.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.0V
2P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.5 - 14V
When depressing accelerator pedal
fully after warming up engine.0V
Monitor item Condition Display value
LINE PRES
DTY (%)Line pressure low – Line pressure high 24% – 95%
SCIA3251E
Name Connec-
tor No. Terminal
No. (Wire
color) ConditionJudge-
ment stan-
dard
(Approx.)
Line pres-
sure sole-
noid valve F46 1 (R/W) -
GroundWhen releasing acceler-
ator pedal after warming
up engine.1.5 - 3.0V
When depressing accel-
erator pedal fully after
warming up engine.0V
Line pres-
sure sole-
noid valve
(with drop-
ping resis-
tor) F46 2 (P/B) -
GroundWhen releasing acceler-
ator pedal after warming
up engine.5 - 14V
When depressing accel-
erator pedal fully after
warming up engine.0V
SCIA3267E

LINE PRESSURE SOLENOID VALVE
AT-391
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

2. CHECK DROPPING RESISTOR
1. Turn ignition switch OFF.
2. Disconnect dropping resistor harness connector in engine room.
3. Check resistance between terminal 1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly connector in engine room.
3. Check resistance between terminal cord assembly harness con-
nector F23 terminal 4 (R/W) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.Resistance: Approx.12Ω
SCIA3276E
Resistance: 2.5 - 5Ω
SCIA3457E

AT-394
[ALL]
MAIN POWER SUPPLY AND GROUND CIRCUIT

MAIN POWER SUPPLY AND GROUND CIRCUITPFP:00100
DescriptionECS00CS1
When the power supply to the TCM is cut OFF, for example because the battery is removed, and the self-diag-
nostics memory function stops, malfunction is detected.
On Board Diagnosis LogicECS00CS2

Diagnostic trouble code “INITIAL START” with CONSULT-II is detected when TCM dose not receive the
voltage signal from the battery power supply.

This is not a malfunction message. (Whenever shutting “OFF” a power supply to the TCM, this message
appears on the screen.)
Possible CauseECS00CS3
Harness or connector
(Battery or ignition switch and TCM circuit is open or shorted.)
DTC Confirmation ProcedureECS00CS4
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
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 for at least 2 consecutive seconds.
4. If DTC is detected, go to AT- 3 9 6 , "
Diagnostic Procedure" .
SAT014K