Coolant Temperature Sensor
NOTE:
Coolant temperature sensor malfunctions may set Code 14 or 15. For additional information, see appropriate TESTS W/CODES - 2.6L
article.
- Unplug coolant temperature sensor. On Amigo, Pickup 2.6L and Rodeo 2.6L, sensor is located on right side of engine, below intake manifold. Sensor connector contains Black and Green/Yellow wires. On Pickup 3.1L, sensor is located at front of engine. Sensor connector contains White and Green/Yellow wires.
- On all models, check resistance between sensor terminals at specified temperature. See COOLANT TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS table. Replace sensor if it is not within specification.
COOLANT TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS
| Temperature °F (°C) | Ohms | |
|---|---|---|
| Amigo, Pickup 2.6L & Rodeo 2.6L | ||
| 14 (-10) | 7000-12,000 | |
| 50 (10) | 3000-5000 | |
| 68 (20) | 2000-3000 | |
| 122 (50) | 700-1000 | |
| 176 (80) | 200-400 | |
| Pickup 3.1L | ||
| -40 (-40) | 100,700 | |
| -22 (-30) | 52,700 | |
| -4 (-20) | 28,680 | |
| 5 (-15) | 21,450 | |
| 14 (-10) | 16,180 | |
| 23 (-5) | 12,300 | |
| 32 (0) | 9420 | |
| 41 (5) | 7280 | |
| 50 (10) | 5670 | |
| 59 (15) | 4450 | |
| 68 (20) | 3520 | |
| 77 (25) | 2796 | |
| 86 (30) | 2238 | |
| 95 (35) | 1802 | |
| 104 (40) | 1459 | |
| 113 (45) | 1188 | |
| 122 (50) | 973 | |
| 140 (60) | 667 | |
| 158 (70) | 467 | |
| 176 (80) | 332 | |
| 194 (90) | 241 | |
| 212 (100) | 177 | |
| Rodeo 3.2L & Trooper | ||
| -40 (-40) | 100,700 | |
| 0 (-18) | 25,000 | |
| 20 (-7) | 13,500 | |
| 40 (4) | 7500 | |
| 70 (21) | 3400 | |
| 100 (38) | 1800 | |
| 160 (71) | 450 | |
| 210 (99) | 185 | |