Batt/Fluid Temp (Fluid Temp Sens. Circuit & TCM Pwr. Source)

Description








The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.





CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE





TCM TERMINALS AND REFERENCE VALUE

ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code BATT/FLUID TEMP SEN with CONSULT-II or 8th judgment flicker without CONSULT-II is detected when TCM receives an excessively low or high voltage from the sensor.

POSSIBLE CAUSE
Check the following items.
- Harness or connectors
(The sensor circuit is open or shorted.)
- A/T fluid temperature sensor

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.

WITH CONSULT-II
1. Start engine.








2. Select "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 20 km/h (12 MPH).

WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 20 km/h (12 MPH).





3. Perform self-diagnosis.
Refer to TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS).





WIRING DIAGRAM - AT - BA/FTS

Diagnostic Procedure





1: CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)





2: DETECT MALFUNCTIONING ITEM





3: CHECK TCM POWER SOURCE STEP 1





4: CHECK TCM POWER SOURCE STEP 2





5: DETECT MALFUNCTIONING ITEM





6: CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY





7: DETECT MALFUNCTIONING ITEM





8: CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II)





9: DETECT MALFUNCTIONING ITEM





10: CHECK DTC





11: CHECK TCM INSPECTION