2003 NISSAN TEANA Power

AT-114
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)

5. CHECK FLUID TEMPERATURE SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminals.
OK or NG
OK >> GO TO 9.
NG >> GO TO 6.
6. 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 terminals and TCM connector terminals.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and transaxle and assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector in engine room.
3. Check resistance between terminal cord assembly harness con-
nector terminals.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
Item Connector TerminalTe m p e r a -
ture °C (°F)Resistance
(Approx.)
TCM con-
nectorF105 47 - 4220 (68) 2.5 kΩ
80 (176) 0.3 kΩ
SCIA4947E
Item Connector Terminal Continuity
TCM connector F105 42
Ye s
Terminal cord assembly
harness connectorF43 7
TCM connector F105 47
Ye s
Terminal cord assembly
harness connectorF43 6
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Temperature °C (°F) Resistance (Approx.)
20 (68) 2.5 kΩ
80 (176) 0.3 kΩ
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ENGINE SPEED SIGNAL
AT-119
D
E
F
G
H
I
J
K
L
MA
B
AT

3. CHECK HARNESS BETWEEN TCM AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector and TCM connector.
3. Check continuity between ECM connector terminal and TCM
connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK DTC
Perform AT- 11 6 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5. 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 F105 39
Ye s
ECM connector M51 103
SCIA3269E

AT-120
TURBINE REVOLUTION SENSOR

TURBINE REVOLUTION SENSORPFP:31935
DescriptionBCS0012B
The turbine revolution sensor (power train revolution sensor) detects forward clutch drum rpm (revolutions per
minute). It is located on the input side of the automatic transaxle. The vehicle speed sensor A/T (Revolution
sensor) is located on the output side of the automatic transaxle. With the two sensors, input and output rpms
are accurately detected. The result is optimal shift timing during deceleration and improved shifting.
CONSULT-II Reference ValueBCS0012C
On Board Diagnosis LogicBCS0012D
Diagnostic trouble code “TURBINE SENSOR” with CONSULT-II or 10th judgement flicker without CONSULT-II
is detected when TCM does not receive the proper voltage signal from the sensor.
Possible CauseBCS0012E

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

Turbine revolution sensor (power train revolution sensor)
DTC Confirmation ProcedureBCS0012F
CAUTION:

Always drive vehicle at a safe speed.

Be careful not to rev engine into the red zone on the tachometer.

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 the malfunction is eliminated.
WITH CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Drive vehicle under the following conditions for more than 5 sec-
onds.
SLCT LVR POSI: “D” position
VEHICLE SPEED: Higher than 40 km/h (25MPH)
ENGINE SPEED: Higher than 1,500 rpm
THROTTLE POSI: Greater than 1.0/8 of the full throttle posi-
tion
4. If DTC is detected, go to AT- 1 2 2 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 5 seconds.
Selector lever position: “D” position
Vehicle speed: Higher than 40 km/h (25MPH)
Engine speed: Higher than 1,500 rpm
Throttle position: 1.0/8 of the full throttle position
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 2 , "
Diagnostic Procedure" .
Item name Condition Display value
TURBINE REV During driving (lock-up ON) Approximately matches the engine speed.
BCIA0031E

AT-122
TURBINE REVOLUTION SENSOR

Data are reference value and are measured between each terminal and ground.
Diagnostic ProcedureBCS0012H
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “TURBINE REV” while driving.
Check the value changes according to driving speed.
OK or NG
OK >> GO TO 8.
NG >> GO TO 2.
2. CHECK TURBINE REVOLUTION SENSOR
With CONSULT-II
1. Start engine.
2. Check power supply to turbine revolution sensor (power train revolution sensor) by voltage between TCM
connector terminals. Refer to AT- 1 5 8 , "
Wiring Diagram — AT — MAIN" .
3. If OK, check the pulse when vehicle cruises.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
Terminal Wire color Item ConditionJudgement
standard (Approx.)
38 G/BTurbine revolution sen-
sor (power train revolu-
tion sensor)When moving at 20 km/h
(12 MPH)240 Hz
42 B Sensor ground Always 0 V
Item name Condition Display value
TURBINE REV During driving (lock-up ON)Approximately matches
the engine speed.
SCIA4730E
Item Connector Terminal Data (Approx.)
TCM con-
nectorF104, F10510 - 42
Battery voltage
19 - 42
Item Condition
Turbine revolution
sensor (power train
revolution sensor)When moving at 20 km/h (12 MPH), use the CONSULT-II
pulse frequency measuring function.
CAUTION:
Connect the diagnosis data link cable to the vehicle
diagnosis connector.
Item Connector Terminal Data (Approx.)
TCM connector F105 38 240 Hz
SCIA4949E

TURBINE REVOLUTION SENSOR
AT-123
D
E
F
G
H
I
J
K
L
MA
B
AT

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
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Item Connector Terminal Continuity
TCM connector F105 38
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 2
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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
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LINE PRESSURE SOLENOID VALVE
AT-131
D
E
F
G
H
I
J
K
L
MA
B
AT

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-156
CONTROL UNIT (RAM)

CONTROL UNIT (RAM)PFP:31036
DescriptionBCS0013Q
TCM consists of a microcomputer and connectors for signal input
and output and for power supply. The unit controls A/T.
On Board Diagnosis LogicBCS0013R
Diagnostic trouble code “CONTROL UNIT (RAM)” with CONSULT-II is detected when TCM memory RAM is
malfunctioning.
Possible CauseBCS0013S
TCM.
DTC Confirmation ProcedureBCS0013T
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Run engine for at least 2 seconds at idle speed.
5. If DTC is detected, go to AT- 1 5 6 , "
Diagnostic Procedure" .
Diagnostic ProcedureBCS0013U
1. CHECK DTC
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-II.
3. Touch “ERASE”.
4. Perform AT- 1 5 6 , "
DTC Confirmation Procedure" .
Is the
“CONTROL UNIT (RAM)” displayed again?
YES >> Replace TCM.
NO >>INSPECTION END
SAT574J
BCIA0031E