PRE-RELEASE
DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT
| DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH INPUT |
DIAGNOSIS:
The input signal circuit of TCM to ATF temperature sensor is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock.
WIRING DIAGRAM:
CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR.
Turn the ignition switch to OFF.Disconnect the connector from TCM.
Measure the resistance between TCM connector terminals.
Connector & terminal
(B55) No. 21 — No. 9:
Is the resistance more than 500 Ω?
| Yes |
| No |
CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR.
Measure the resistance of harness between TCM connector and chassis ground.Connector & terminal
(B55) No. 21 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
CHECK HARNESS.
Measure the resistance between TCM connector terminals while shaking the harness.Connector & terminal
(B55) No. 21 — No. 9:
Does the resistance change?
| Yes |
| No |
Replace the TCM.
CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR.
Turn the ignition switch to OFF.Disconnect the connector from transmission.
Measure the resistance of harness between TCM connector and chassis ground.
Connector & terminal
(B55) No. 21 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the short circuit in harness between TCM and transmission harness.
CHECK HARNESS CONNECTOR BETWEEN TCM AND ATF TEMPERATURE SENSOR.
Measure the resistance of harness between TCM connector and chassis ground.Connector & terminal
(B55) No. 9 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the short circuit in harness between TCM and transmission harness.
CHECK ATF TEMPERATURE SENSOR.
Measure the resistance between transmission connector terminals.Connector & terminal
(T4) No. 11 — No. 15:
Is the resistance more than 500 Ω?
| Yes |
Even if the AT OIL TEMP warning light is blinking, the circuit has returned to normal condition at this time. A temporary short circuit of connector or harness may be the cause. Repair the harness or connector.
| No |
CHECK TRANSMISSION HARNESS.
Lift-up the vehicle and place it on rigid racks.Drain the ATF.
| Note | ||
|
Do not drain the ATF until it cools down. |
Remove the oil pan.
Disconnect the harness connector from control valve.
Measure the resistance between ATF temperature sensor connector terminals
Measure the resistance between transmission connector and transmission ground.
Connector & terminal
(T4) No. 11 — Transmission ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Replace the transmission harness.
CHECK TRANSMISSION HARNESS.
Measure the resistance between transmission connector and transmission ground,Connector & terminal
(T4) No. 15 — Transmission ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Replace the transmission harness.
CHECK ATF TEMPERATURE SENSOR.
Measure the resistance between control valve connector terminalsTerminal
No. 1 — No. 3:
Is the resistance more than 500 Ω?
| Yes |
Even if the AT OIL TEMP warning light is blinking, the circuit has returned to normal condition at this time. A temporary short circuit of connector or harness may be the cause. Repair the harness or connector.
| No |
Replace the control valve body.
