Transmission Fluid Temperature Sensor G93, Checking
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Special tools, testers and auxiliary items required
- Multimeter
- Wiring diagram
Requirements
- The Transmission Fluid Temperature Sensor G93 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 selector lever must be in the "P" position.
- The Ground (GND) connections to transmission must be OK.
Procedure
- Disconnect the Transmission Fluid Temperature Sensor G93 electrical harness connector.
- Check the electrical harness connector for damage, corrosion, lose or broken terminals.
- Repair any damage found to the electrical harness connector.
If the electrical harness connector is not OK:
- Repair the malfunction.
If the electrical harness connector is OK:
Checking resistance
- Using a multimeter, check the Transmission Fluid Temperature Sensor G93 terminals 10 to 12 for resistance.
| ATF Temperature | Specified Values |
|---|---|
| Approx. - 30°C | 37.0 - 51.0 KΩ |
| Approx. 10°C | 5 - 8 KΩ |
| Approx. 25°C | 3.0 - 5.0 KΩ |
| Approx. 110°C | 230.0 - 265.0 KΩ |
| Approx. 145°C | 100.0 - 120.0 KΩ |
If any of the specified values are not obtained:
- Replace the Transmission Fluid Temperature Sensor G93. Refer to , Removing and Replacing
If the specified values are obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
Test Box 105 Pin VAG1598/31
If the manufacturers test box is not being used. Perform the following step.
- Remove the Transmission Control Module (TCM) J217. Refer to → Transmission Control Module (TCM) J217, Replacing .
- Using a multimeter, check the Transmission Fluid Temperature Sensor G93 electrical harness connector terminals to the Transmission Control Module (TCM) J217 electrical harness connector terminals for an open circuit.
| Transmission Fluid Temperature Sensor G93 electrical harness connector terminal | Transmission Control Module (TCM) J217 electrical connector terminals or test box sockets |
|---|---|
| 13 | 22 |
| 14 | 21 |
Specified value: 1.5 Ω 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. Refer to , Removing and Replacing
If no malfunction is found in the wiring and the resistance was OK:
- Replace the Transmission Control Module (TCM) J217. Refer to → Transmission Control Module (TCM) J217, Replacing .
Final procedures
- Check the DTC memory.
- If necessary, erase the DTC memory. Refer to Diagnostic Mode 04 - Reset/Delete Diagnostic Data .
- If the DTC memory was erased, generate readiness code. Refer to Readiness Code Description .