NISSAN TEANA 2003 Service Manual

TURBINE REVOLUTION SENSOR
AT-123
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3. CHECK POWER AND SENSOR GROUND
1. Turn ignition switch OFF.
2. Disconnect the turbine revolution sensor (power train revolution sensor) harness connector.
3. Turn ignition switch ON. (Do not start engine.)
4. Check voltage between turbine revolution sensor (power train
revolution sensor) harness connector terminals.
5. Check voltage between turbine revolution sensor (power train
revolution sensor) harness connector terminal and ground.
6. If OK, check harness for short to ground and short power.
7. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG - 1 >> Battery voltage is not supplied between terminals 1 and 3, terminals 1 and ground: GO TO 6.
NG - 2 >> Battery voltage is not supplied between terminals 1 and 3 only: GO TO 7.
4. CHECK HARNESS BETWEEN TCM AND TURBINE REVOLUTION SENSOR
1. Turn ignition switch OFF.
2. Disconnect the turbine revolution sensor (power train revolution sensor) harness connector.
3. Check continuity between TCM connector terminal and turbine
revolution sensor (power train revolution sensor) harness con-
nector terminal.
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Item Connector Terminal Data (Approx.)
Turbine revolution sensor
(power train revolution sensor)
harness connectorF38 1 - 3 Battery voltage
SCIA2770E
Item Connector Terminal Data (Approx.)
Turbine revolution sensor
(power train revolution sensor)
harness connectorF38 1 - ground Battery voltage
SCIA2771E
Item Connector Terminal Continuity
TCM connector F105 38
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 2
SCIA2772E

AT-124
TURBINE REVOLUTION SENSOR

5. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 6 4 , "
TCM Terminals and Reference Value" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
6. CHECK HARNESS BETWEEN TCM AND TURBINE REVOLUTION SENSOR (POWER)
1. Turn ignition switch OFF.
2. Disconnect the turbine revolution sensor (power train revolution sensor) harness connector.
3. Check continuity between TCM connector terminals and turbine
revolution sensor (power train revolution sensor) harness con-
nector terminal. Refer to AT- 4 2 , "
Circuit Diagram" and AT- 1 5 8 ,
"Wiring Diagram — AT — MAIN" .
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> 10A fuse (No.83, located in the IPDM E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND TURBINE REVOLUTION SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect the turbine revolution sensor (power train revolution sensor) harness connector.
3. Check continuity between TCM connector terminal and turbine
revolution sensor (power train revolution sensor) harness con-
nector terminal.
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Item Connector Terminal Continuity
TCM connector F104 10
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 1
TCM connector F104 19
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 1
SCIA2773E
Item Connector Terminal Continuity
TCM connector F105 42
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 3
SCIA2774E

TURBINE REVOLUTION SENSOR
AT-125
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8. CHECK DTC
Perform AT- 1 2 0 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.

AT-126
LINE PRESSURE SOLENOID VALVE

LINE PRESSURE SOLENOID VALVEPFP:31940
DescriptionBCS0012I
Line pressure solenoid valve regulates oil pump discharge pressure to suit the driving condition in response to
a signal sent from TCM.
The line pressure duty cycle value is not consistent when the closed throttle position switch is ON. To
confirm the line pressure duty cycle at low-pressure, accelerator (throttle) should be open until the
closed throttle position switch is “OFF”.
CONSULT-II Reference ValveBCS0026L
On Board Diagnosis LogicBCS0012J
Diagnostic trouble code “LINE PRESSURE S/V” with CONSULT-II or 11th judgement flicker without CON-
SULT-II is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible CauseBCS0012K

Harness or connector
(Solenoid circuit is open or shorted.)

Line pressure solenoid valve
DTC Confirmation ProcedureBCS0012L
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm that the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Depress accelerator pedal completely and wait at least 1 sec-
ond.
4. If DTC is detected, go to AT- 1 2 9 , "
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- 7 6 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 1 2 9 , "
Diagnostic Procedure" .
Item name Condition Display value (Approx.)
LINE PRES DTYSmall throttle opening (Low line pressure) ⇔ Large throttle opening
(High line pressure)0% ⇔ 92%
BCIA0031E

LINE PRESSURE SOLENOID VALVE
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Wiring Diagram — AT — LPSVBCS0012M
TCWM0324E

AT-128
LINE PRESSURE SOLENOID VALVE

Data are reference value and are measured between each terminal and ground.
Terminal Wire color Item ConditionJudgement standard
(Approx.)
1 G/RLine pressure solenoid
valveWhen releasing accelera-
tor pedal after warming up
engine.1.5 - 3.0 V
When depressing acceler-
ator pedal fully after warm-
ing up engine.0V
2W/BLine pressure solenoid
valve (with dropping
resistor)When releasing accelera-
tor pedal after warming up
engine.5 - 14 V
When depressing acceler-
ator pedal fully after warm-
ing up engine.0V

LINE PRESSURE SOLENOID VALVE
AT-129
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Diagnostic ProcedureBCS0012N
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 terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Item name ConditionDisplay value
(Approx.)
LINE PRES DTYSmall throttle opening (Low line pressure) ⇔
Large throttle opening (High line pressure)0% ⇔ 92%
SCIA3251E
ItemConnec-
torTerminal
(Wire color)ConditionJudge-
ment stan-
dard
(Approx.)
Line pres-
sure sole-
noid valveF104 1 - GroundWhen releasing acceler-
ator pedal after warming
up engine.1.5 - 3.0 V
When depressing accel-
erator pedal fully after
warming up engine.0V
Line pres-
sure sole-
noid valve
(with drop-
ping resis-
tor)F104 2 - GroundWhen releasing acceler-
ator pedal after warming
up engine.5 - 14 V
When depressing accel-
erator pedal fully after
warming up engine.0V
SCIA3267E

AT-130
LINE PRESSURE SOLENOID VALVE

2. CHECK DROPPING RESISTOR
1. Turn ignition switch OFF.
2. Disconnect dropping resistor harness connector in engine room.
3. Check resistance between terminals.
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 terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
Item Connector TerminalResistance
(Approx.)
Dropping resistor harness
connectorF39 1 - 2 12 Ω
SCIA4950E
Solenoid valve Connector Terminal Resistance (Approx.)
Line pressure solenoid
valveF43 4 - Ground 2.5 - 5.0 Ω
SCIA4951E

LINE PRESSURE SOLENOID VALVE
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4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector and TCM connector.
3. Check continuity between terminal cord assembly harness con-
nector terminal and TCM connector terminal.
4. Check continuity between terminal cord assembly harness con-
nector terminal and dropping resistor harness connector termi-
nal.
5. Check continuity between dropping resistor harness connector
terminal and TCM connector terminal.
6. If OK, check harness for short to ground and short to power.
7. If OK, check continuity between ground and transaxle assembly.
8. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK DTC
Perform AT- 1 2 6 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 6 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 Terminal Continuity
TCM connector F104 1
Ye s
Terminal cord assembly
harness connectorF43 4
SCIA3272E
Item Connector Terminal Continuity
Dropping resistor harness
connectorF39 1
Ye s
Terminal cord assembly
harness connectorF43 4
SCIA3273E
Item Connector Terminal Continuity
TCM connector F104 2
Ye s
Dropping resistor harness
connectorF39 2
SCIA3274E

AT-132
LINE PRESSURE SOLENOID VALVE

Component InspectionBCS0012O
LINE PRESSURE SOLENOID VALVE
For removal, refer to AT- 2 2 5 , "Control Valve Assembly and Accumulators" .
Resistance
Check resistance between terminal and ground.
Operation
Check solenoid valve by listening for its operating sound while apply-
ing battery voltage to the terminal and ground.
DROPPING RESISTOR
Check resistance between terminals.
Solenoid valve Connector TerminalResistance
(Approx.)
Line pressure
solenoid valveF43 4 - Ground 2.5 - 5Ω
SCIA4951E
SCIA3275E
Item Connector TerminalResistance
(Approx.)
Dropping resistor harness
connectorF39 1 - 2 12 Ω
SCIA4950E