2001 NISSAN X-TRAIL turn signal

DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)
AT-203
[EURO-OBD]
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DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)PFP:31036
DescriptionECS004SP
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
ON BOARD DIAGNOSIS LOGIC
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting the
next test.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
A/T with CONSULT-II.
2. Start engine.
3. Run engine for at least 2 seconds at idle speed.
Diagnostic ProcedureECS004SQ
1.INSPECTION START (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch “ON” and select “SELF DIAGNOSIS” mode for A/T with CONSULT-II.
2. Touch “ERASE”.
>> GO TO 2.
SAT574J
Diagnostic Trouble Code No. Malfunction is detected when.... Check Item (Possible Cause)
: CONTROL UNIT (RAM),
CONTROL UNIT (ROM)TCM memory (RAM) or (ROM) is malfunc-
tioning.
●TCM
SAT014K
SAT971J

DTC CONTROL UNIT(EEPROM)
AT-205
[EURO-OBD]
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DTC CONTROL UNIT(EEPROM)PFP:31036
DescriptionECS004SR
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
ON BOARD DIAGNOSIS LOGIC
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting the
next test.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
A/T with CONSULT-II.
2. Start engine.
3. Run engine for at least 2 seconds at idle speed.
SAT574J
Diagnostic trouble code Malfunction is detected when... Check item (Possible cause)
: CONT UNIT (EEP ROM)TCM memory (EEP ROM) is malfunction-
ing.
●TCM
SAT014K
SAT971J

AT-210
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
3. CHECK LAMP CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Check resistance between TCM terminals 13 and 10, 19.
3. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Check the following items:
●O/D OFF indicator lamp.
Refer to DI-10, "
Meter/Gauge Operation and Odo/Trip
Meter Segment Check in Diagnosis Mode" .
●Harness and fuse for short or open between ignition
switch and O/D OFF indicator lamp
Refer to PG-2, "
POWER SUPPLY ROUTING" .
●Harness for short or open between O/D OFF indicator lamp and TCM.
4. CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. Resistance: 50 - 100Ω
SCIA0767E

AT-242
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
DESCRIPTION
●PNP switch
The PNP switch assembly includes a transmission position
switch. The transmission position switch detects the selector
lever position and sends a signal to the TCM.
●Overdrive control switch
Detects the overdrive control switch position (ON or OFF) and
sends a signal to the TCM.
●Closed throttle position signal and wide-open throttle position
signal
ECM judges throttle opening based on a signal from accelerator
pedal position sensor, and sends the signal via CAN communi-
cation to TCM.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(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 6 , "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)
SCIA0752E
SCIA0776E
PBIB0498E
SAT701J

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-243
[EURO-OBD]
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2.CHECK PNP SWITCH CIRCUIT (WITHOUT CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to “ON” position. (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 4.
NG >> Check the following items:
●PNP switch (Refer to AT- 2 4 6 , "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)
3.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(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 5.
NG >> Check the following items:
●Overdrive control switch (Refer to AT- 2 4 6 , "COMPO-
NENT INSPECTION" .)
●Harness for short or open between TCM and over-
drive control switch
●Harness of ground circuit for overdrive control switch
for short or open Vo l t a g e :
B: Battery voltage
0: 0V
Lever positionTerminal No.
36 35 34 27 26
P, N B 0 0 0 0
R0B000
D00B00
2000B0
10000B
SCIA0777E
SAT645J

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-245
[EURO-OBD]
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5.CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIRCUIT
(WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(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 7.
NG >> Check the following items. If any items are damaged, repair or replace damaged parts.
●Accelerator pedal position sensor — Refer to AT- 1 8 0 , "DTC P1705 ACCELERATOR PEDAL
POSITION (APP) SENSOR" .
●Harness for short or open between accelerator pedal position sensor and ECM
6.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 8 0 , "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 7.
NG >> Repair or replace damaged parts.
7.CHECK DTC
Perform “TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)”. Refer to AT- 5 1 , "
TCM SELF-DIAGNOSTIC
PROCEDURE (NO TOOLS)" .
OK or NG
OK >>INSPECTION END
NG >>
●Perform TCM input/output signal inspection.
●If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
Accelerator pedal
conditionData monitor
CLOSED THL/SW W/O THRL-SW
Released ON OFF
Fully depressed OFF ON
SAT646J

AT-252
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
X: Applicable —: Not applicable : Option
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITH CONSULT-II)
1. If the ignition switch stays “ON” after repair work, be sure to turn
ignition switch “OFF” once. Wait for at least 3 seconds and then
turn it “ON” again.
2. Turn CONSULT-II “ON”, and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. (The self-diagnostic results will be erased.)
DUTY-HI — — —
Duty cycle value for measurement probe is dis-
played.
DUTY-LOW — — —
PLS WIDTH-HI — — —
Measured pulse width of measurement probe is dis-
played.
PLS WIDTH-LOW — — —Item Displaymove to center Monitor items
Description Remarks
TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu
SAT014K
SAT971J
SAT970J

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-257
[EXC.F/EURO-OBD]
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t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITHOUT CONSULT-II)
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait for at
least 3 seconds and then turn it “ON” again.
2. Perform “SELF-DIAGNOSTIC PROCEDURE (Without CONSULT-II)”. Refer to AT- 2 5 3 , "
Diagnostic Proce-
dure Without CONSULT-II" (EXC. for EURO-OBD).
3. Turn ignition switch “OFF”. (The self-diagnostic results will be erased.)
10th judgement flicker is longer than others.
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
 Go to LINE PRESSURE SOLENOID VALVE.
Refer to AT- 3 9 611th judgement flicker is longer than others.
CAN communication line is damaged.
Go to CAN COMMUNICATION LINE.
Refer to AT-403
Lamp comes OFF.
PNP switch, overdrive control switch, closed throttle position sig-
nal or wide-open throttle position signal circuit is disconnected or
TCM is damaged.
(Because closed throttle position signal and wide-open throttle
position signal are input via CAN communication line malfunction
may continue after self-diagnosis.)
 Go to TCM Self-diagnosis Does Not Activate.
Refer to AT- 3 4 4 Flickers as shown below.
Battery power is low.
Battery has been disconnected for a long time.
Battery is connected conversely.
(When reconnecting TCM connectors.—This is a problem.) O/D OFF indicator lamp:
SCIA0704ESCIA0705E
SCIA0706ESAT804H