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
Disassembly
Hint:
Use the same procedures for the rh side and lh side.
The procedures listed below are for the lh side.
Remove no. 1 Rear seat reclining cover lh
Remove the 2 screws.
Using a screwdriver, detach the 5 claws and remove
the cover.
Hint:
Tape the screwdriver tip before ...
Horn system
Parts location
System diagram
Problem symptoms table
Hint:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms are
listed in order of probability in the "suspected area" column of
the table. Check each symptom by c ...
Removal
Table of bolt, screw and nut
Hint:
All bolts, screws and nuts relevant to installing and
removing the instrument panel are shown along with
their alphabet codes in the table below.
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconne ...