Transmission Fluid Temperature Sensor G93, Checking

Transmission Fluid Temperature Sensor G93, Checking

Special tools, testers and auxiliary items required
- Multimeter
- Wiring diagram

Requirements
- The Transmission Control Module (TCM) J217 fuse OK.
- The battery voltage must be at least 12.5 Volts.
- All electrical consumers must be switched off.
- The parking brake must be engaged.
- The elector lever must be in the "P" position.
- The Ground (GND) connections to transmission must be OK.
- Ignition switched off.

Test procedure
- Perform a preliminary check to verify the customers complaint. Preliminary Check

Start diagnosis







- Disconnect the Transmission Fluid Temperature Sensor G93 electrical harness connector - 1 -.
- Check the electrical harness connector for damage, corrosion, loose or broken terminals.
- Repair any damage found to the electrical harness connector.

If the electrical harness connector is OK:

Checking resistance







- Using a multimeter, check the Transmission Fluid Temperature Sensor G93 terminals 1 to 2 for resistance.

ATF Temperature Specified Values
Approx. -30 degrees C 37.0 - 51.0 k Ohms
Approx. 10 degrees C 5 - 8 k Ohms
Approx. 25 degrees C 3.0 - 5.0 k Ohms
Approx. 110 degrees C 230.0 - 265.0 k Ohms
Approx. 145 degrees C 100.0 - 120.0 k Ohms

If any of the specified values are not obtained:
- Replace the Transmission Fluid Temperature Sensor G93.

If the specified values are obtained:

Checking wiring
If the manufacturers test box is being used. Perform the following step.
- Install the Adapter F/VAG1598 VAG1598/22.

If the manufacturers test box is not being used. Perform the following step.
- Remove the Transmission Control Module (TCM) J217.







- Using a multimeter, check the Transmission Fluid Temperature Sensor G93 electrical harness connector terminals to the Transmission Control Module (TCM) J217 electrical harness connector T52 terminals for an open circuit.

Transmission Fluid Temperature Transmission Control Module (TCM)
Sensor G93 electrical harness J217 electrical connector T52
connector terminal terminals or test box sockets
1 45
2 8

Specified value: 1.5 Ohms Max.

If the specified value was not obtained:
- Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
- If necessary, repair the faulty wiring connection.

If no malfunction is found in the wiring and the resistance was not OK:
- Replace the Transmission Fluid Temperature Sensor G93.
- Erase the DTC memory. Diagnostic Mode 04 - Erase DTC Memory
- Perform a road test to verify repair.

If the DTC does not return:
Repair complete, Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes
- End diagnosis.

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was not OK:
- Replace the Transmission Control Module (TCM) J217.
- Assembly is performed in the reverse of the removal.

Final Procedures
After the repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes

End of diagnosis