Toyota Camry (XV70): Transmission Fluid Temperature Sensor "A" Circuit Range/Performance (P071000)
DESCRIPTION
The ATF temperature sensor converts the automatic transaxle fluid (ATF) temperature into a resistance value for use by the ECM.
The ECM applies a voltage to the temperature sensor through terminal THO1 of the ECM.
The sensor resistance changes with the ATF temperature. As the temperature rises, the sensor resistance decreases.
One terminal of the sensor is grounded so that the sensor resistance and voltage decrease as the temperature rises.
The ECM calculates the ATF temperature based on the voltage signal.
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | Memory |
Note |
P071000 |
Transmission Fluid Temperature Sensor "A" Circuit Range/Performance |
Either of the following condition is met (2-trip detection logic):
- Certain monitor enabling conditions are met and the ATF temperature is below 20
|
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DESCRIPTION The ATF temperature sensor converts the automatic transaxle fluid (ATF) temperature into a resistance value for use by the ECM.
The ECM applies voltage to the temperature sensor through
DESCRIPTION The ATF temperature sensor converts the automatic transaxle fluid (ATF) temperature into a resistance value for use by the ECM.
The ECM applies voltage to the temperature sensor through
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MONITOR DESCRIPTION The main CPU and sub CPU of the ECM perform data communication between each other. The main CPU monitors the communications and WDC pulses from the sub CPU. When the signal malfunctions below are detected, this DTC is stored.
DTC No. Detection Item
DTC Detection Cond
ComponentsCOMPONENTS ILLUSTRATION
*1 TRANSMITTER BATTERY
*2 TRANSMITTER BATTERY HOUSING COVER
*3 TRANSMITTER HOUSING COVER
*4 TRANSMITTER HOUSING CASE RemovalREMOVAL PROCEDURE
1. REMOVE TRANSMITTER BATTERY
(a) Insert a screwdriver into the gap, and tu