
VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-85
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6. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (POWER)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminals and revolu-
tion sensor harness connector 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 REVOLUTION SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminal and revolu-
tion sensor harness connector 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.
8. CHECK DTC
Perform AT- 8 0 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
Item Connector Terminal Continuity
TCM connector F104 10
Ye s
Revolution sensor harness
connectorF15 1
TCM connector F104 19
Ye s
Revolution sensor harness
connectorF15 1
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Item Connector Terminal Continuity
TCM connector F105 42
Ye s
Revolution sensor harness
connectorF15 3
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SHIFT SOLENOID VALVE A
AT-93
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2. CHECK SHIFT SOLENOID VALVE A CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. 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. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and transaxle assembly.
6. 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 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 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform AT- 9 0 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Solenoid Valve Connector TerminalResistance
(Approx.)
Shift solenoid valve A F104 11 - Ground 20 - 30 Ω
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Item Connector Terminal Continuity
TCM connector F104 11
Ye s
Terminal cord assembly
harness connectorF43 2
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Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve A F43 2 - Ground 20 - 30 Ω
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AT-98
SHIFT SOLENOID VALVE B
2. CHECK SHIFT SOLENOID VALVE B CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. 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. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and transaxle assembly.
6. 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 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 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform AT- 9 5 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Solenoid Valve Connector TerminalResistance
(Approx.)
Shift solenoid valve B F104 12 - Ground 5 - 20 Ω
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Item Connector Terminal Continuity
TCM connector F104 12
Ye s
Terminal cord assembly
harness connectorF43 1
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Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve B F43 1 - Ground 5 - 20 Ω
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OVERRUN CLUTCH SOLENOID VALVE
AT-103
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2. CHECK OVERRUN CLUTCH SOLENOID VALVE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. 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. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and transaxle assembly.
6. 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 VALVE RESISTANCE
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 terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform AT- 1 0 0 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Solenoid Valve Connector TerminalResistance
(Approx.)
Overrun clutch solenoid
valveF104 20 - Ground 20 - 30 Ω
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Item Connector Terminal Continuity
TCM connector F104 20
Ye s
Terminal cord assembly
harness connectorF43 3
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Solenoid valve Connector Terminal Resistance (Approx.)
Overrun clutch solenoid
valveF43 3 - Ground 20 - 30 Ω
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AT-108
TORQUE CONVERTER CLUTCH SOLENOID VALVE
2. CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. 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. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and transaxle assembly.
6. 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 VALVE RESISTANCE
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 terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform AT- 1 0 5 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Solenoid Valve Connector TerminalResistance
(Approx.)
Torque converter clutch
solenoid valveF104 3 - Ground 5 - 20 Ω
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Item Connector Terminal Continuity
TCM connector F104 3
Ye s
Terminal cord assembly
harness connectorF43 5
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Solenoid valve Connector Terminal Resistance (Approx.)
Torque converter clutch
solenoid valveF43 5 - Ground 5 - 20Ω
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AT-110
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)
PFP:31940
DescriptionBCS0011W
A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to TCM.
CONSULT-II Reference ValueBCS0011X
On Board Diagnosis LogicBCS0011Y
Diagnostic trouble code “BATT/FLUID TEMP SEN” with CONSULT-II or 8th judgement flicker without CON-
SULT-II is detected when TCM receives an excessively low or high voltage from the sensor.
Possible CauseBCS0011Z
Harness or connector
(Sensor circuit is open or shorted.)
A/T fluid temperature sensor
DTC Confirmation ProcedureBCS00120
CAUTION:
Always drive vehicle at a safe speed.
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. Start engine.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Drive vehicle under the following conditions.
SLCT LVR POSI: “D” position
VEHICLE SPEED: Higher than 20 km/h (12 MPH)
4. If DTC is detected, go to AT- 11 2 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions.
Selector lever position: “D” position
Vehicle speed: Higher than 20 km/h (12 MPH)
3. Perform self-diagnosis. Refer to AT- 7 6 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 11 2 , "
Diagnostic Procedure" .
Item name Condition Display value (Approx.)
FLUID TEMP SE When A/T fluid temperature is 20°C (68°F). 1.5 V
When A/T fluid temperature is 80°C (176°F). 0.5 V
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AT-112
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
Data are reference value and are measured between each terminal and ground.
Diagnostic ProcedureBCS00122
1. CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following items:
Harness for short or open between ignition switch and TCM connector terminals 10, 19
Harness for short or open between battery and TCM connector terminal 28
15A fuse (No.17, located in the fuse block) and 10A fuse (No83, located in the IPDM E/R)
Ignition switch. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
Terminal Wire color Item ConditionJudgement stan-
dard (Approx.)
10 Y Power source
or When turning ignition switch ON. Battery voltage
When turning ignition switch OFF. 0 V
19 Y Power sourceWhen turning ignition switch ON. Battery voltage
When turning ignition switch OFF. 0 V
28 Y/RPower source
(Memory back-up)Always Battery voltage
42 B Sensor ground Always 0 V
47 GA/T fluid temperature
sensor
and When A/T fluid temperature is
20°C (68°F).1.5 V
When A/T fluid temperature is
80°C (176°F).0.5 V
Item Connector TerminalJudgement standard
(Approx.)
TCM connectorF10410
Battery voltage 19
F105 28
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Name Connector TerminalJudgement standard
(Approx.)
TCM connectorF10410 0 V
19 0 V
F105 28 Battery voltage
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
AT-113
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3. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR
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 “FLUID TEMP SE”.
Without CONSULT-II
1. Start engine.
2. Check voltage TCM connector terminals while warming up A/T.
OK or NG
OK >> GO TO 9.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING ITEM
Check the following items:
Harness for short or open between TCM, ECM and terminal cord assembly
Ground circuit for ECM. Refer to EC-106, "POWER SUPPLY AND GROUND CIRCUIT" (QR engine) or
EC-451, "
POWER SUPPLY AND GROUND CIRCUIT" (VQ engine).
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
Item name ConditionDisplay value
(Approx.)
FLUID TEMP SEWhen A/T fluid temperature is 20°C
(68°F).1.5 V
When A/T fluid temperature is 80°C
(176°F).0.5 V
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Item Connector Terminal ConditionJudgement
standard
(Approx.)
TCM con-
nectorF105 47 - 42When A/T fluid tempera-
ture is 20°C (68°F).1.5 V
When A/T fluid tempera-
ture is 80°C (176°F).0.5 V
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