Transmission Fluid Temperature Sensor, Checking

Transmission Fluid Temperature Sensor, checking

Recommended special tools and equipment
- V.A.G 1526 multimeter or V.A.G 1715 multimeter
- V.A.G 1594 connector test kit
- Wiring diagram

Test requirements
- Selector lever must be in -P- position.
- Ground (GND) connections to transmission must be OK.
- Ignition switched off.

Test sequence
- Connect test box to control module wiring harness.

Checking resistance
- Measure resistance of Transmission Fluid Temperature Sensor -G93- at test box between sockets 6 + 67:

ATF temperature Specified value
approx. 20°C 230.0 to 265.0 K ohms
approx. 60°C 42.0 to 56.0 K ohms
approx. 120°C 5.0 to 9.0 K ohms

If one of the specified values is not obtained:
- Check wires according to wiring diagram.

Checking wiring
- Disconnect 12-pin harness connector at transmission.






- Check wires between test box and 12-pin connector to Transmission Control Module (TCM) for open circuit according to wiring diagram.
Terminal 1 + socket 67
Terminal 12 + socket 6
Wire resistance: max. 1.5 ohms

- Check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: infinite ohms

If no malfunctions are found in wires:
- Replace Transmission Fluid Temperature Sensor -G93-
- Erase DTC memory of Transmission Control Module (TCM).
- Generate readiness code.