P0712
DTC P0712 FLUID (OIL) TEMPERATURE SENSOR CIRCUIT - LOWCOMPONENT LOCATION
Refer to DTC: P0711. P0711
GENERAL DESCRIPTION
The automatic TRANSAXLE fluid (ATF) temperature sensor is installed in the Valve Body. This sensor uses a thermistor whose resistance changes according to the temperature changes. The TCM supplies a 5V reference voltage to the sensor, and the output voltage of the sensor changes when the ATF temperature varies. The automatic TRANSAXLE fluid (ATF) temperature provides very important data for the TCM's control of the Torque Converter Clutch, and is also used for many other purposes.
DTC DESCRIPTION
Refer to DTC: P0711. P0711
DTC DETECTING CONDITION
SPECIFICATION
Refer to DTC P0711. P0711
MONITOR SCANTOOL DATA
Refer to DTC P0711. P0711
TERMINAL & CONNECTOR INSPECTION
Refer to DTC P0711. P0711
SIGNAL CIRCUIT INSPECTION
1. Ignition "ON" & Engine "OFF".
2. Disconnect the "TRANSAXLE FLUID TEMPERATURE SENSOR" connector.
3. Measure the voltage between terminal "1" of the "TRANSMISSION FLUID TEMPERATURE SENSOR" harness connector and chassis ground.
Specification: Approximately 5V
4. Is voltage within specifications?
YES Go to "Component Inspection" procedure.
NO Check for short to ground in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure.
COMPONENT INSPECTION
1. CHECK "TRANSAXLE FLUID TEMPERATURE SENSOR"
1) Ignition "OFF".
2) Disconnect the "TRANSAXLE FLUID TEMPERATURE SENSOR" connector.
3) Measure the resistance between terminals "1" and "2" of the "TRANSMISSION FLUID TEMPERATURE SENSOR".
Specification: Refer to "Reference data"
[REFERENCE DATA]
4) Is resistance within specifications?
YES Go to "CHECK PCM/TCM" as below.
NO Replace "TRANSAXLE FLUID TEMPERATURE SENSOR" as necessary and Go to "Verification Vehicle Repair" procedure.
2. CHECK TCM
1) Ignition "ON" & Engine "OFF".
2) Connect "TRANSAXLE FLUID TEMPERATURE SENSOR" connector.
3) Install scan tool and select a SIMU-SCAN.
4) Simulate voltage (0 -> 5V) to "TRANSMISSION FLUID TEMPERATURE SENSOR" signal circuit.
5) Is FLUID TEMP. SENSOR signal value changed according to simulation voltage?
YES Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM as necessary and then go to "Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
Refer to DTC P0711. P0711