Turbine Revolution Sensor

DTC TURBINE REVOLUTION SENSOR (VG33ER ONLY)







Description
The turbine revolution sensor detects input shaft rpm (revolutions per minute). It is located on the input side of the automatic transmission. The vehicle speed sensor A/T (Revolution sensor) is located on the output side of the automatic transmission. With the two sensors, input and output shaft rpms are accurately detected. The result is optimal shift timing during deceleration and improved shifting.

TCM TERMINALS AND REFERENCE VALUE:

ON BOARD DIAGNOSIS LOGIC:

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

CAUTION: Always drive vehicle at a safe speed.
If conducting this "DTC CONFIRMATION PROCEDURE" again, always turn ignition switch "OFF" and wait at least 5 seconds before continuing.

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 40 km/h (25 MPH), engine speed higher than 1,500 rpm, throttle opening greater than 1.0/8 of the full throttle position and driving for more than 5 seconds.


No Tools
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever in "D", vehicle speed higher than 40 km/h (25 MPH), engine speed higher than 1,500 rpm, throttle opening greater than 1/8 of the full throttle position and driving for more than 5 seconds.







3. Perform self-diagnosis.
Refer to "Displaying & Reading Trouble Codes / Without Scan Tool / TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)".
Without Scan Tool

AT - TRSA/T (VG33ER):

Diagnostic Procedure
1. CHECK INPUT SIGNAL

With CONSULT-II
1. Start engine.
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.







3. Read out the value of "TURBINE REV" Check the value changes according to engine speed.


Without CONSULT-II
1. Start engine.







2. Check voltage between TCM harness connector M78 terminal 38 (Y) and ground. (Measure in AC range.)

OK or NG?

OK >> GO TO 3.

NG >> GO TO 2.


2. DETECT MALFUNCTIONING ITEM
Check harness for short or open between TCM and turbine revolution sensor.

OK or NG?

OK >> GO TO 3.

NG >> Repair or replace damaged parts.


3. CHECK DTC
Perform "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE".

OK or NG?

OK >> INSPECTION END.

NG >> GO TO 4.


4. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminal for damage or loose connection with harness connector.

OK or NG?

OK >> INSPECTION END.

NG >> Repair or replace damaged parts.











TURBINE REVOLUTION SENSOR / Component Inspection
Check resistance between terminals 1, 2 and 3.