Transmission Fluid Temperature Sensor, Checking

Transmission Fluid Temperature Sensor, Checking

Recommended special tools and equipment
- VAG1526 multimeter or VAG1715 multimeter
- VAG1594 connector test kit
- Wiring diagram

Test requirements
- Respective fuses in fuse box (instrument panel, right) must be OK:
- Battery voltage must be at least 11.5 volts.
- Ground (GND) connections to transmission must be OK.
- Selector lever must be in -P- position.
- Ignition switched off.

Test sequence







- Disconnect 8-pin harness connector -arrow 3-.

Checking resistance
- Measure resistance of Transmission Fluid Temperature Sensor -G93- between terminals 1 + 2 at connector to sensor:

ATF temperature Specified value
approx. -30 degrees C 37.0 to 51.0 K ohms
approx. 10 degrees C 5.0 to 8.0 K ohms
approx. 25 degrees C 3.0 to 5.0 K ohms
approx. 110 degrees C 230.0 to 265.0 ohms
approx. 145 degrees C 100.0 to 120.0 ohms

If one of the specified values is not obtained:
- Replace Transmission Fluid Temperature Sensor -G93-.
- Erase DTC memory of Transmission Control Module (TCM). Diagnostic Mode 04 - Erase DTC Memory
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes

If specified values are obtained:
- Check wires according to wiring diagram.

Checking wiring
- Connect test box to control module wiring harness. Connecting Test Box For Wiring Test







- Check wires between test box and 8-pin connector to Transmission Control Module (TCM) for open circuit according to wiring diagram.

Terminal 1 + socket 45
Terminal 2 + socket 8

Wire resistance: max. 1.5 ohms

- Also check wires for short circuit to each other.

Specified value: infinity ohms.

If no malfunctions are found in wires:
- Replace Transmission Control Module (TCM) - J217 -.