ecu NISSAN TERRANO 2004 Service Service Manual
[x] Cancel search | Manufacturer: NISSAN, Model Year: 2004, Model line: TERRANO, Model: NISSAN TERRANO 2004Pages: 1833, PDF Size: 53.42 MB
Page 896 of 1833
DIAGNOSTIC PROCEDURE
Perform diagnostic test mode II (self-
diagnostic results) for engine control.
Check ignition signal circuit condition.
OK
ENGCheck ignition signal circuit
for engine control. Refer to
EC section [TROUBLE
DIAGNOSIS FOR ªIGN
SIGNAL-PRIMARYº (DTC
21)].
CHECK INPUT SIGNAL.
1. Start engine.
2. Select ªECU INPUT SIGNALSº in Data Monitor.
3. Read out the value of ªENGINE SPEEDº.
Check engine speed changes
according to throttle position.
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
1. Start engine.
2. Check voltage between TCM ter- minal q
39and ground.
Voltage (Idle speed): Approximately 0.8V
Voltage (2,000 rpm): Approximately 2.2V
OK
ENG Check the following items:
IHarness for short or
open between TCM and
ECM
I Resistor
Refer to EC section
[TROUBLE DIAGNOSIS
FOR ªIGN SIGNAL-PRI-
MARYº (DTC 21)].
Perform ªSELF-DIAGNOSIS CODE CON-
FIRMATION PROCEDUREº, AT-82.
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
YAT320
H
H
H
TROUBLE DIAGNOSIS FOR ENGINE SPEED SIG
Engine Speed Signal (Cont'd)
AT-83
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Page 907 of 1833
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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Page 908 of 1833
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
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Page 909 of 1833
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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Page 915 of 1833
5. Engine Cannot Be Started In ªPº and ªNºPosition
SYMPTOM:
I Engine cannot be started with selector lever in ªPº or ªNº
position.
I Engine can be started with selector lever in ªDº, ª2º, ª1º
or ªRº position.
Does ªECU INPUT SIGNALSº in
Data Monitor show damage to park/
neutral position switch circuit?
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
park/neutral position switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-93.
Check for short or open of park/neutral
position switch 2-pin connector. Refer to
AT-93.
OK
ENGRepair or replace park/
neutral position switch.
Check starting system. Refer to EL sec-
tion (ªSystem Descriptionº, ªSTARTING
SYSTEMº).
OK
ENGRepair or replace dam-
aged parts.
INSPECTION END
6. In ªPº Position, Vehicle Moves Forward Or
Backward When Pushed
SYMPTOM:
Vehicle moves when it is pushed forward or backward with
selector lever in ªPº position.
Check parking pawl components. Refer to
AT-180.
OK
ENG Repair or replace dam-
aged parts.
INSPECTION END
SAT146BA
NAT275
SAT133B
H
H
H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-102
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Page 916 of 1833
7. In ªNº Position, Vehicle Moves
SYMPTOM:
Vehicle moves forward or backward when selecting ªNº posi-
tion.
Does ªECU INPUT SIGNALSº in
Data Monitor show damage to park/
neutral position switch circuit?
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
park/neutral position switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-97.
Check control linkage. Refer to AT-120.
OK
ENGAdjust control linkage.
Refer to AT-120.
Check A/T fluid level again.
OK
ENGRefill ATF.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG 1. Disassemble A/T.
2. Check the following items:
I Forward clutch assembly
I Overrun clutch assembly
I Reverse clutch assembly
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
SAT146BA
NAT276
SAT638A
SAT171B
H
H
H
HH
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-103
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Page 921 of 1833
12. A/T Does Not Shift: D1®D2Or Does Not
Kickdown: D
4® D2
SYMPTOM:
A/T does not shift from D1to D2at the specified speed.
A/T does not shift from D
4to D2when depressing accelerator
pedal fully at the specified speed.
Are 10. Vehicle Does Not Creep Forward
In ªDº, ª2º Or ª1º Position and 11. Vehicle
Cannot Be Started From D
1OK?
Ye s
ENo Go to 10. Vehicle Does
Not Creep Forward In ªDº,
ª2º Or ª1º Position and 11.
Vehicle Cannot Be Started
From D
1, AT-106, AT-107.
Does ªECU INPUT SIGNALSº in
Data Monitor show damage to park/
neutral position switch circuit?
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
park/neutral position switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-97.
Check vehicle speed sensor×A/T (revolu-
tion sensor) and vehicle speed
sensor×MTR. Refer to AT-52, AT-56.
OK
ENGRepair or replace vehicle
speed sensor×A/T (revolu-
tion sensor) and vehicle
speed sensor×MTR. Refer
to AT-52, AT-56.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº (DTC 43)].
OK
ENGRepair or replace throttle
(accelerator) position sen-
sor.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
1. Remove control valve.Refer to AT-118.
2. Check the following items:
I Shift valve A
I Shift solenoid valve A
I Pilot valve
I Pilot filter
3. Disassemble A/T.
4. Check the following items:
I Servo piston assembly
I Brake band
I Oil pump assembly
1. Remove control valve. Refer to AT-118.
2. Check the following items:
I Shift valve A
I Shift solenoid valve A
I Pilot valve
I Pilot filter
OK
FOK
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
SAT146BA
NAT262
SAT171B
H
H
H
H
H
HH
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-108
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Page 922 of 1833
13. A/T Does Not Shift: D2®D3
SYMPTOM:
A/T does not shift from D2to D3at the specified speed.
Are 10. Vehicle Does Not Creep Forward
In ªDº, ª2º Or ª1º Position and 11. Vehicle
Cannot Be Started From D
1OK?
Ye s
ENo
Go to 10. Vehicle Does
Not Creep Forward In ªDº,
ª2º Or ª1º Position and 11.
Vehicle Cannot Be Started
From D
1, AT-106, AT-107.
Does ªECU INPUT SIGNALSº in
Data Monitor show damage to park/
neutral position switch circuit?
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
park/neutral position switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-97.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº].
OK
ENGRepair or replace throttle
(accelerator) position sen-
sor.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG 1. Remove control valve
assembly. Refer to
AT-118.
2. Check the following items:
I Shift valve B
I Shift solenoid valve B
I Pilot valve
I Pilot filter
3. Disassemble A/T.
4. Check the following items:
I Servo piston assembly
I High clutch assembly
I Oil pump assembly
1. Remove control valve assembly. Refer
to AT-118.
2. Check the following items:
I Shift valve B
I Shift solenoid valve B
I Pilot valve
I Pilot filter
OK
OK
F
Check again.
OK
ENG1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin terminals for damage or
loose connection with
harness connector.
INSPECTION END
SAT146BA
NAT262
SAT171B
H
H
H
H
HH
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-109
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Page 925 of 1833
16. A/T Does Not Hold Lock-up Condition
SYMPTOM:
A/T does not hold lock-up condition for more than 36 seconds.
Does self-diagnosis show damage to
engine speed signal circuit after cruise
test?
No
EYe sCheck engine speed sig-
nal. Refer to AT-82.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG 1. Remove control valve
assembly. Refer to
AT-118.
2. Check the following items:
I Torque converter clutch
control valve
I Pilot valve
I Pilot filter
3. Disassemble A/T.
4. Check torque converter and oil pump assembly.
1. Remove control valve assembly. Referto AT-118.
2. Check the following items:
I Torque converter clutch control valve
I Pilot valve
I Pilot filter
OKFOK
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
17. Lock-up Is Not Released
SYMPTOM:
Lock-up is not released when accelerator pedal is released.
Does ªECU INPUT SIGNALSº in
Data Monitor show damage to closed
throttle position switch circuit?
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
closed throttle position switch circuit?
No
EYe s
Check closed throttle posi-
tion switch. Refer to AT-93.
Check again.
OK
ENG1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin terminals for damage or
loose connection with
harness connector.
INSPECTION END
SAT835H
SAT171B
SAT146BA
H
H
HH
H
H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-112
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Page 928 of 1833
20. A/T Does Not Shift: D2®D1When
Depressing Accelerator Pedal
SYMPTOM:
A/T does not shift from D2to D1when depressing accelerator
pedal fully at the specified speed.
Are 9. Vehicle Does Not Creep
Backward In ªRº Position and 10.
Vehicle Does Not Creep Forward In
ªDº, ª2º Or ª1º Position OK?
Ye s
ENo Go to 9. Vehicle Does Not
Creep Backward In ªRº Position
and 10. Vehicle Does Not Creep
Forward In ªDº, ª2º Or ª1º
Position, AT-105, AT-106.
Does ªECU INPUT SIGNALº
show damage to park/neutral
position switch circuit?
---------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------
Does self-diagnosis show dam-
age to park/neutral position
switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-93.
Check vehicle speed sensor×A/T
(revolution sensor) and vehicle
speed sensor×MTR. Refer to AT-52,
AT-56.
OK
ENGRepair or replace vehicle speed
sensor×A/T (revolution sensor)
and vehicle speed sensor×MTR.
Check throttle (accelerator) position
sensor. Refer to EC section
[TROUBLE DIAGNOSIS FOR
ªTHROTTLE (ACCEL) POSI SENº
(DTC 43)].
OK
ENGRepair or replace throttle (accel-
erator) position sensor.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
1. Remove control valve. Referto AT-118.
2. Check the following items:
I Shift valve A
I Shift solenoid valve A
I Pilot valve
I Pilot filter
3. Disassemble A/T.
4. Check the following items:
I Servo piston assembly
I Brake band
I Oil pump assembly
1. Remove control valve. Refer to
AT-118.
2. Check the following items:
I Shift valve A
I Shift solenoid valve A
I Pilot valve
I Pilot filter
OKFOK
Check again.
OK
ENG 1. Perform TCM input/output
signal inspection.
2. If NG, recheck TCM pin termi- nals for damage or loose con-
nection with harness connec-
tor.
INSPECTION END
SAT146BA
NAT262
SAT171B
H
H
H
H
H
H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-115
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