Test U: Temperature Gauge Incorrect
- Turn ignition off. Remove ELECTRON fuse from interior fuse panel. Wait at least 2 minutes, then reinstall fuse. Locate outside air temperature sensor on lower center radiator support. Disconnect outside air temperature sensor. Connect Instrument Gauge System Tester (Rotunda 014-R1063) leads between sensor connector Yellow/Green wire terminal and ground. Turn ignition on. Adjust tester to the following resistances ensuring that the given temperature readings result. See TEMPERATURE GAUGE OHMS
table. If readings are as specified, go to step 3). If readings are not as specified, go to next step.
TEMPERATURE GAUGE OHMS
| K/Ohms |
Indicated Temperature |
| 20 |
97°F (36°C) |
| 40 |
68°F (20°C) |
| 60 |
53°F (12°C) |
| 80 |
43°F (6°C) |
| 100 |
35°F (2°C) |
- Turn ignition off. Remove instrument cluster. See INSTRUMENT CLUSTER
under REMOVAL & INSTALLATION. Disconnect instrument cluster connector C274. See Figure
. Measure resistance of Yellow/Green wire between instrument cluster connector C274 terminal No. 1 and outside air temperature sensor connector. Measure resistance between ground and instrument cluster connector C274 terminal No. 1 (Yellow/Green wire). If resistance between instrument cluster connector and sensor connector is less than 5 ohms, and more than 10,000 ohms between instrument cluster connector and ground, replace instrument cluster. See INSTRUMENT CLUSTER
under REMOVAL & INSTALLATION. If resistances are not as specified, repair open or short in Yellow/Green wire.
- Leave ignition off and sensor disconnected. Measure resistance between ground and outside air temperature sensor connector Black wire. If resistance is 5 ohms or less, replace outside air temperature sensor. If resistance is more than 5 ohms, repair open in Black wire.