2004 NISSAN TERRANO check engine

DIAGNOSTIC PROCEDURE
CHECK GROUND CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal q
3
and ground.
Resistance: 20 - 40W
OK
ENG
1. Remove control valve
assembly. Refer to
AT-118.
2. Check the following items:
I Overrun clutch solenoid
valve
Refer to ªCOMPONENT
INSPECTIONº below.
I Harness of terminal cord
assembly for short or open
CHECK POWER SOURCE CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check resistance between terminal q
3
and TCM harness connector terminal
q
20.
Resistance: Approximately 0W
If OK, check harness for short to
ground and short to power.
4. Reinstall any part removed.
OK
ENG Repair open circuit or short
to ground or short to power
in harness or connector.
Perform ªSELF-DIAGNOSIS CODE
CONFIRMATION PROCEDUREº, AT-71.
OK
ENG1. Perform TCM input/output
signal inspection.
2. If NG, recheck TCM pin terminals for damage or
loose connection with har-
ness connector.
INSPECTION END
COMPONENT INSPECTION
Overrun clutch solenoid valve
I For removal, refer to AT-118.
Resistance check
I Check resistance between terminal q
3and ground.
Solenoid valve
Terminal No.Resistance
(Approx.)
Overrun clutch
solenoid valve q
3Ground
20 - 40W
Operation check
ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal q
3and ground.
YAT308
YAT309
YAT310
YAT311
H
H
H
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH S/V
Overrun Clutch Solenoid Valve (Cont'd)
AT-72
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Torque Converter Clutch Solenoid Valve
DESCRIPTION
The torque converter clutch solenoid valve is activated, with the
gear in D
4, by the TCM in response to signals sent from the vehicle
speed and throttle (accelerator) position sensors. Torque converter
clutch piston operation will then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ... Check items
(Possible cause)
: T/C CLUTCH SOL/V TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.I
Harness or connectors
(The solenoid circuit is open or
shorted.)
I T/C clutch solenoid valve
: 7th judgement flicker
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
Monitor item ConditionSpecification
Torque converter clutch solenoid valve
duty Lock-up ªOFFº
"
Lock-up ªONº Approximately
4%"
Approximately 94%
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
1) Start engine.
2) Select ªSELF-DIAG RESULTSº mode with CONSULT-II.
3) Drive vehicle in D
1,D2,D3,D4,D4lock-up
position.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle in D
1,D2,D3,D4,D4lock-up
position.
3) Perform self-diagnosis. Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
SAT342HA
SAT818H
TROUBLE DIAGNOSIS FOR T/C CLUTCH SOL/V
AT-74
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DIAGNOSTIC PROCEDURE
CHECK GROUND CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal q
6
and ground.
Resistance: 10 - 20W
OK
ENG
1. Remove oil pan. Refer
to AT-128.
2. Check the following items:
I Torque converter clutch
solenoid valve
Refer to ªCOMPONENT
INSPECTIONº on next
page.
I Harness of terminal cord
assembly for short or
open
CHECK POWER SOURCE CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check resistance between terminal q
6
and TCM harness connector terminal
q
3.
Resistance: Approximately 0W
If OK, check harness for short to
ground and short to power.
4. Reinstall any part removed.
OK
ENG Repair open circuit or short
to ground or short to
power in harness or con-
nector.
Perform ªSELF-DIAGNOSIS CODE CON-
FIRMATION PROCEDUREº, AT-74.
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
YAT312
YAT313
H
H
H
TROUBLE DIAGNOSIS FOR T/C CLUTCH SOL/V
Torque Converter Clutch Solenoid Valve
(Cont'd)
AT-75
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A/T Fluid Temperature Sensor and TCM Power
Source
DESCRIPTION
The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble codeMalfunction is detected when ... Check items
(Possible cause)
: BATT/FLUID TEMP SEN
TCM receives an excessively low or
high voltage from the sensor.I
Harness or connectors
(The sensor circuit is open or
shorted.)
I A/T fluid temperature sensor
: 8th judgement flicker
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
Monitor item ConditionSpecification
A/T fluid temperature sensor Cold [20ÉC (68ÉF)]
"
Hot [80ÉC (176ÉF)] Approximately
1.5V"
Approximately 0.5V
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
1) Start engine.
2) Select ªSELF-DIAG RESULTSº mode with CONSULT-II.
3) Drive vehicle under the following conditions:Selector lever in ªDº position, vehicle speed higher than
10 km/h (6 MPH), throttle opening greater than 1/8 of the
full open position, engine speed higher than 450 rpm
and driving for more than 10 minutes.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than
10 km/h (6 MPH), throttle opening greater than 1/8 of the
full open position, engine speed higher than 450 rpm
and driving for more than 10 minutes.
3) Perform self-diagnosis. Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
SAT342HA
SAT821H
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP SEN
AT-78
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DIAGNOSTIC PROCEDURE
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 A/T FLUID TEMPERATURE
SENSOR WITH TERMINAL CORD
ASSEMBLY.
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals q
6
andq7when A/T is cold.
Resistance: Cold [20ÉC (68ÉF)]Approximately 2.5 kW
4. Reinstall any part removed.
OK
ENG 1. Remove oil pan.
2. Check the following items:
I A/T fluid temperature
sensor
Refer to ªCOMPONENT
INSPECTIONº on next
page.
I Harness of terminal cord
assembly for short or
open
qA
(Go to next page.)
YAT418
YAT317
H
H
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP SEN
A/T Fluid Temperature Sensor and TCM Power
Source (Cont'd)
AT-79
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qA
CHECK INPUT SIGNAL OF A/T FLUID
TEMPERATURE SENSOR.
1. Start engine.2. Select ªECU INPUT SIGNALSº in Data Monitor.
3. Read out the value of ªFLUID TEMP SEº.
Voltage:
Cold [20ÉC (68ÉF)] ®
Hot [80ÉC (176ÉF)]: Approximately
1.5V ®0.5V
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
1. Start engine.
2. Check voltage between TCM ter- minal q
47and ground while warm-
ing up A/T.
Voltage:
Cold [20ÉC (68ÉF)] ®
Hot [80ÉC (176ÉF)]: Approximately
1.5V ®0.5V
OK
ENG
Check the following item:
IHarness for short or
open between TCM and
terminal cord assembly
(Main harness)
Perform ªSELF-DIAGNOSIS CODE CON-
FIRMATION PROCEDUREº, AT-78.
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
COMPONENT INSPECTION
A/T fluid temperature sensor
I For removal, refer to AT-118.
I Check resistance between terminals q
6andq7while chang-
ing temperature as shown at left.
Temperature ÉC (ÉF) Resistance
20 (68) Approximately 2.5 kW
80 (176) Approximately 0.3 kW
YAT419
YAT319
H
H
H
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP SEN
A/T Fluid Temperature Sensor and TCM Power
Source (Cont'd)
AT-80
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Engine Speed Signal
DESCRIPTION
The engine speed signal is sent from the ECM to the TCM.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble codeMalfunction is detected when ... Check items
(Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper volt-
age signal from ECM.I
Harness or connectors
(The sensor circuit is open or
shorted.)
:
9th judgement flicker
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
1) Start engine.
2) Select ªSELF-DIAG RESULTSº mode with CONSULT-II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than
10 km/h (6 MPH), throttle opening greater than 1/8 of the
full throttle position and driving for more than 10 sec-
onds.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than
10 km/h (6 MPH), throttle opening greater than 1/8 of the
full throttle position and driving for more than 10 sec-
onds.
3) Perform self-diagnosis. Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.SAT823H
TROUBLE DIAGNOSIS FOR ENGINE SPEED SIG
AT-82
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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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