2004 NISSAN TERRANO Service Repair Manual

YAT409
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS
Wiring Diagram Ð AT Ð PNP/SW (Cont'd)AT-92
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Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches
DESCRIPTION
IPark/neutral position switch
Detects the selector lever position and sends a signal to the
TCM.
I Overdrive control switch
Detects the overdrive control switch position (ON or OFF) and
sends a signal to the TCM.
I Throttle (accelerator) position switch
Consists of a wide open throttle position switch and a closed
throttle (accelerator) position switch.
The wide open throttle position switch sends a signal to the
TCM when the throttle valve is open at least 1/2 of the full
throttle position. The closed throttle position switch sends a
signal to the TCM when the throttle valve is fully closed.
YAT336
NAT234
NAT261
NAT306
NAT262
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS
AT-93
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DIAGNOSTIC PROCEDURE
CHECK PARK/NEUTRAL POSITION
SWITCH CIRCUIT.
1. Turn ignition switch to ªONº posi-tion.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in Data Monitor.
3. Read out ªR, N, D, 2 and 1 posi- tion switchesº moving selector
lever to each position.
Check the signal of the selector
lever position is indicated properly.
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
1. Turn ignition switch to ªONº posi-
tion. (Do not start engine.)
2. Check voltage between TCM ter- minals q
26,q27,q34,q35,q36and
ground while moving selector
lever through each position.
Voltage: B: Battery voltage
0: 0V
OK
ENG Check the following items:
IPark/neutral position
switch
Refer to ªCOMPONENT
INSPECTIONº, AT-119.
I Harness for short or
open between ignition
switch and park/neutral
position switch (Main
harness)
I Harness for short or
open between park/
neutral position switch
and TCM (Main harness)
I Diode
qA
(Go to next page.)
Lever position Terminal No.
q36q35q34q27q26
P, N B0000
R0 B000
D00 B00
2 000 B0
1 0000 B
YAT326
H
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS
Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches
(Cont'd)
AT-94
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qA
CHECK OVERDRIVE CONTROL
SWITCH CIRCUIT.
1. Turn ignition switch to ªONº posi-tion.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in Data Monitor.
3. Read out ªOVERDRIVE SWITCHº. Check the signal of the overdrive
control switch is indicated prop-
erly.
(Overdrive control switch ªONº
displayed on CONSULT-II means
overdrive ªOFFº.)
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
1. Turn ignition switch to ªONº posi-
tion.
(Do not start engine.)
2. Check voltage between TCM ter- minal q
22and ground when over-
drive control switch is ªONº and
ªOFFº.
OK
ENG Check the following items.
IOverdrive control switch
Refer to ªCOMPONENT
INSPECTIONº, AT-119.
I Harness for short or
open between TCM and
overdrive control switch
(Main harness)
I Harness for short or
open of ground circuit for
overdrive control switch
(Main harness)
qB(Go to next page.)
Switch position Voltage
ON Battery voltage
OFF 1V or less
YAT327
H
H
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS
Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches
(Cont'd)
AT-95
http://vnx.su/

qB
CHECK THROTTLE (ACCELERATOR)
POSITION SWITCH CIRCUIT.
1. Turn ignition switch to ªONº posi-tion.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in Data Monitor.
3. Read out ªCLOSED THL/SWº and ªW/O THRL/P-SWº depressing
and releasing accelerator pedal.
Check the signal of throttle (accel-
erator) position switch is indicated
properly.
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
1. Turn ignition switch to ªONº posi-
tion.
(Do not start engine.)
2. Check voltage between TCM ter- minals q
16,q17and ground while
depressing, and releasing accel-
erator pedal slowly. (after warming
up engine)
OK
ENG Check the following items:
IThrottle (accelerator)
position switch
Refer to ªCOMPONENT
INSPECTIONº, AT-119.
I Harness for short or
open between ignition
switch and throttle
(accelerator) position
switch (Main harness)
I Harness for short or
open between throttle
(accelerator) position
switch and TCM (Main
harness)
Perform ªDIAGNOSTIC PROCEDUREº,
AT-94.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin terminals for damage or
loose connection with
harness connector.
INSPECTION END
Accelerator
pedal condi- tion Data monitor
CLOSED THL/SW W/O THRL/
P-SW
Released ON OFF Fully
depressed OFF ON
Accelerator
pedal
condition Voltage
Terminal No. q
16Terminal No.
q17
Released Battery
voltage 1V or less
Fully
depressed 1V or less Battery
voltage
YAT328
YAT329
H
H
H
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS
Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches
(Cont'd)
AT-96
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COMPONENT INSPECTION
Overdrive control switch
ICheck continuity between terminals q1andq2.
Switch position
Continuity
ON No
OFF Yes
A/T mode switch
ICheck continuity between terminals q1,(q3) and q2.
Switch position
Terminal No. Continuity
S ON
q
2Ðq3Ye s
OFF No
*
ON q1Ðq2Ye s
OFF No
Park/neutral position switch
1. Check continuity between terminals q1andq2and between
terminals q
3andq4,q5,q6,q7,q8,q9while moving man-
ual shaft through each position.
Lever position Terminal No.
P q
1Ðq2q3Ðq7
R q3Ðq8
N q1Ðq2q3Ðq9
D q3Ðq6
2 q3Ðq5
1 q3Ðq4
2. If NG, check again with manual control linkage disconnected
from manual shaft of A/T assembly. Refer to step 1.
3. If OK on step 2, adjust manual control linkage. Refer to AT-117.
4. If NG on step 2, remove park/neutral position switch from A/T and check continuity of park/neutral position switch terminals.
Refer to step 1.
5. If OK on step 4, adjust park/neutral position switch. Refer to AT-119.
6. If NG on step 4, replace park/neutral position switch.
NAT265
YAT422
SAT517GB
YAT423
YAT424
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS
Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches
(Cont'd)
AT-97
http://vnx.su/

Throttle (accelerator) position switch
Closed throttle position switch (idle position)
ICheck continuity between terminals q
5andq6.
Accelerator pedal condition
Continuity
Released Yes
Depressed No
ITo adjust closed throttle (accelerator) position switch, refer to
EC section (ªBasic Inspectionº, ªTROUBLE DIAGNOSIS Ð
Basic Inspectionº).
Wide open throttle position switch
I Check continuity between terminals q
4andq5.
Accelerator pedal condition
Continuity
Released No
Depressed Yes
A/T fluid temperature switch
1. Make sure the A/T fluid warning lamp lights when the key is
inserted and turned to ªONº.
2. Make sure the A/T fluid warning lamp goes off when turning the ignition switch to ªONº.
3. For removal, refer to AT-118.
4. Check resistance between terminal q
6and ground while
changing temperature as shown at left.
Temperature ÉC (ÉF) Continuity
140 (284) or more Yes
140 (284) or less No
YAT425
YAT426
YAT335
TROUBLE DIAGNOSIS FOR NON-DETECTABLE ITEMS
Park/neutral Position, Overdrive Control or
Throttle (Accelerator) Position Switches
(Cont'd)
AT-98
http://vnx.su/

1. SPORT Indicator Lamp Does Not Come On
SYMPTOM:
POWER indicator lamp does not come on for about 2 seconds
when turning ignition switch to ªONº.
CHECK TCM POWER SOURCE.
1. Turn ignition switch to ªONº position.(Do not start engine.)
2. Check voltage between TCM terminals q
10,q19and ground.
Battery voltage should exist.
OK
ENG Check the following items:
IHarness for short or
open between ignition
switch and TCM (Main
harness)
I Ignition switch and fuse
Refer to EL section
(ªPOWER SUPPLY
ROUTINGº).
CHECK TCM GROUND CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check resistance between TCM termi- nals q
25,q48and ground.
Resistance: Approximately 0W
If OK, check harness for short to
ground and short to power.
OK
ENG Repair open circuit or short
to ground or short to
power in harness or con-
nector.
CHECK LAMP CIRCUIT.
1. Turn ignition switch to ªONº position.
2. Set overdrive control, A/T check or power switch to ªONº position.
3. Check voltage between TCM terminal q
13and ground.
Voltage: Battery voltage
4. Reinstall any part removed.
OK
ENG Check the following items:
IFuse (7.5A)
I SPORT indicator lamp
Refer to EL section
(ªWARNING LAMPSº).
I Harness for short or
open between ignition
switch and SPORT indi-
cator lamp (Main har-
ness)
Refer to EL section
(ªPOWER SUPPLY
ROUTINGº).
I Harness for short or
open between SPORT
indicator lamp and TCM
Check again.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin terminals for damage or
loose connection with
harness connector.
INSPECTION END
YAT427
YAT428
YAT429
H
H
HH
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-99
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