2001 TOYOTA HIGHLANDER Service Repair Manual

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Page 1945 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual I04062
Free Pushed in
3 41 2@
- DIAGNOSTICSCRUISE CONTROL SYSTEM
05-2157
2347 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 READ VALUE OF HAND-HELD TESTER
(a) Connec

Page 1946 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual I39310
Stop Lamp Switch Wire Harness Side
Connector Front View:
S15
I36982
Wire Harness View:
E6
ST1
STP
05-2158
- DIAGNOSTICSCRUISE CONTROL SYSTEM
2348 Author: Date:
2005 HIGHLANDER REPAIR MANUAL

Page 1947 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - DIAGNOSTICSCRUISE CONTROL SYSTEM
05-2159
2349 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0607/54 INPUT SIGNAL CIRCUIT MALFUNCTION
CIRCUIT DESCRIPTION
This DTC indicates the inter

Page 1948 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05-928- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
111 8 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0710 TRANSMISSION FLUID TEMPERATURE
SENSOR ºAº C

05-928- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
111 8 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0710 TRANSMISSION FLUID TEMPERATURE
SENSOR ºAº CIRCUIT
DTC P0712 TRANSMISSION FLUID TEMPERATURE
SENSOR ºAº CIRCUIT LOW INPUT
DTC P0713 TRANSMISSION FLUID TEMPERATURE
SENSOR ºAº CIRCUIT HIGH INPUT
CIRCUIT DESCRIPTION
The ATF (Automatic Transmission Fluid) temperature sensor converts the fluid temperature into a resistance
value which is input into the ECM.
The ECM applies a voltage to the temperature sensor through ECM terminal THO1 (THO).
The sensor resistance changes with the transmission fluid temperature. As the temperature becomes high-
er, the sensor resistance decreases.
One terminal of the sensor is grounded so that the sensor resistance decreases and the voltage goes down
as the temperature becomes higher.
The ECM calculates the fluid temperature based on the voltage signal.
DTC No.DTC Detection ConditionTrouble Area
P0710
(a) and (b) is detected momentary within 0.5 sec. when neither
P0712 or P0713 is not detected (1-trip detection logic)
(a) ATF temperature sensor resistance is less than 79 W.
(b) ATF temperature sensor resistance is more than 156 kW.
HINT:
Within 0.5 sec., the malfunction switches from (a) to (b) or from
(b) to (a)
Open or short in ATF temperature sensor circuit
Transmission wire (ATF temperature sensor)
ECM
P0712ATF temperature sensor resistance is less than 79 W for 0.5
sec. or more (1-trip detection logic)Short in ATF temperature sensor circuit
Transmission wire (ATF temperature sensor)
ECM
P0713
ATF temperature sensor resistance is more than 156 kW when
15 minutes or more after the engine start
DTC is detected for 0.5 sec. or more (1-trip detection logic)Open in ATF temperature sensor circuit
Transmission wire (ATF temperature sensor)
ECM
MONITOR DESCRIPTION
The automatic transmission fluid (ATF) temperature sensor converts ATF temperature to an electrical resis-
tance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an
opens or shorts in the ATF temperature circuit. If the resistance value of the ATF temperature is less than
79
W*1 or more than 156 kW*2, the ECM interprets this as a fault in the ATF sensor or wiring. The ECM will
turn on the MIL and store the DTC.
*1: 150C (302F) or more is indicated regardless of the actual ATF temperature.
*2: -40C (-40F) is indicated regardless of the actual ATF temperature.
HINT:
The ATF temperature can be checked on the OBD II scan tool or hand-held tester display.
0527N-31

Page 1949 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-929
111 9 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
MONITOR STRATEGY
Related DTCs
P0710: ATF temperature se

Page 1950 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual G30836G32447
THOE2
BR
E828
32 6 E10
Electronically Controlled
Transmission Solenoid
E7 O
1 O G-YECM
E2
THO5V BR
S28 S2955 Short Connector 05-930
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE

Page 1951 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual C54864
THO
E2 Transmission Wire Side:
(Connector Front View):
E10
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-931
1121 Author: Date:
2005 HIGHLANDER REPAIR MANUAL

C54864
THO
E2 Transmission Wire Side:
(Connector Front View):
E10
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-931
1121 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
HINT:
According to the DATA LIST displayed by the OBD II scan tool or hand-held tester, you can read the value
of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as the first step of
troubleshooting is one method to shorten labor time.
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the OBD II scan tool or hand-held tester to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Push the ºONº button of the OBD II scan tool or the hand-held tester.
(f) When you use hand-held tester:
Select the item ºDIAGNOSIS/ENHANCED OBD II/DATA LISTº.
(g) According to the display on tester, read the ºDATA LISTº.
ItemMeasurement Item/
Range (display)Normal Condition
AT FLUID TEMP
ATF Temp. Sensor Value/
min.: -40C (-40F)
max.: 215C (419F)
Approx. 80C (176F) (After Stall Test)
HINT:
When DTC P0712 is output and OBD II scan tool or hand-held tester output is 150C (302F), there is a
short circuit.
When DTC P0713 is output and OBD II scan tool or hand-held tester output is -40C (-40F), there is an
open circuit.
Measure the resistance between terminal THO1 (THO) and body ground.
Temperature DisplayedMalfunction
-40°C (-40°F)Open circuit
150°C (302°F) or moreShort circuit
1 INSPECT TRANSMISSION WIRE(ATF TEMPERATURE SENSOR)
(a) Disconnect the transmission wire connector from the
transaxle.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
1 (THO) - 6 (E2)79 W to 156 kW
(c) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
1 (THO) - Body ground10 kW or higher
6 (E2) - Body ground=
NG REPAIR OR REPLACE TRANSMISSION WIRE
(SEE PAGE 40-34)
OK

Page 1952 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual G20668
THO
E2
E7E8E9E6E5
ECM:
05-932- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1122 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 CHECK HARNESS AND CONNEC

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