Description
The automatic transmission fluid (atf) temperature sensor converts the atf temperature into a resistance value which is input into the ecm.
The ecm applies a voltage to the temperature sensor through ecm terminal tho1.
The sensor resistance changes with the atf temperature.
One terminal of the sensor is grounded so that the sensor resistance and voltage decrease as the temperature becomes higher.
The ecm calculates the atf based on the voltage signal.
Monitor description
Atf temperature sensor converts atf temperature to an electrical resistance value. Based on the resistance, the ecm determines the atf temperature, and the ecm detects an open or short in the atf temperature circuit. If the resistance value of the atf temperature is less than 79 ù*1 or more than 156 kù*2, the ecm interprets this as a fault in the atf sensor or wiring. The ecm will illuminate the mil and store the dtc.
Hint:
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Component operating range
Wiring diagram
Inspection procedure
Hint:
Using the intelligent tester's data list allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the data list early in troubleshooting is one way to save time.
Notice:
In the table below, the values listed under "normal condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
Hint:
Measure the resistance between terminal tho1 (tho) and the body ground.
Hint:
If a circuit related to the atf temperature sensor becomes open, p0713 is set in approximately 0.5 Seconds. It is not necessary to inspect the circuit when p0711 is set
Standard resistance
Hint:
If the resistance is out of the specified range of either of the atf temperatures shown in the table below, the driveability of the vehicle may decrease.
Standard resistance
Standard resistance
Replace ecm
Air inlet damper control servo motor circuit
Description
The damper servo (air inlet control) sends pulse signals to indicate the
damper position to the air
conditioning amplifier. The air conditioning amplifier activates the motor
(normal or reverse) based on
these signals to move the air inlet control damper to the appropriate pos ...
Diagnosis system
Description
Sliding roof system data and diagnostic trouble
codes (dtcs) can be read through the vehicle's
data link connector 3 (dlc3). When the system
seems to be malfunctioning, use the intelligent
tester to check for malfunctions and perform repairs.
Check dlc3
The vehi ...
Registration
In case of tire pressure warning ecu
replacement
Read id stored in the old ecu using the intelligent
tester.
In case of tire pressure warning valve and
transmitter and/or tire pressure warning
ecu replacement
Read the id written on the tire pressure monitor
valve.
...