Transmission Fluid Temperature Sensor, Checking
Special tools and workshop equipment required
- Multimeter VAG1526 or Multimeter VAG1715
- Connector test kit VAG1594
- Wiring diagram
Test Prerequisites
- Respective fuses in fuse box (instrument panel, right) must be OK: Refer to SYSTEM WIRING DIAGRAM
- 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 °C | 37.0 to 51.0 KΩ |
| approx. 10 °C | 5.0 to 8.0 KΩ |
| approx. 25 °C | 3.0 to 5.0 KΩ |
| approx. 110 °C | 230.0 to 265.0 Ω |
| approx. 145 °C | 100.0 to 120.0 Ω |
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 READINESS CODE .
If specified values are obtained:
-- Check wires according to wiring diagram.
Wiring, Checking
-- Connect test box to control module wiring harness, connect 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. 1.5Ω
-- Also check wires for short circuit to each other.
Specified value: ∞ Ω
If no malfunctions are found in wires:
-- Replace Transmission Control Module (TCM) -J217- TRANSMISSION CONTROL MODULE, REPLACING .