Engine Coolant Temperature Sensor Resistance Specifications
| Temperature °F (°C) | Ohms |
|---|---|
| 212 (100) | 177 |
| 158 (70) | 467 |
| 104 (40) | 1459 |
| 68 (20) | 3520 |
| 32 (0) | 9420 |
| 5 (-15) | 21,450 |
| 40 (-40) | 100,700 |
ECT SENSOR RESISTANCE VALUES
Intake Air Temperature Sensor Resistance Specifications
| Temperature °F (°C) | Ohms |
|---|---|
| 212 (100) | 177 |
| 158 (70) | 467 |
| 104 (40) | 1459 |
| 68 (20) | 3520 |
| 32 (0) | 9420 |
| 5 (-15) | 21,450 |
| 40 (-40) | 100,700 |
IAT SENSOR RESISTANCE VALUES
Torque Converter Clutch (TCC) Solenoid
See TRANSMISSION under MISCELLANEOUS CONTROLS.
Note. Some TCC solenoids have an internal pressure switch in series with solenoid winding and will not show continuity until transmission hydraulic pressure is applied.
Disconnect Torque Converter Clutch (TCC) solenoid harness connector. Using DVOM, measure resistance between appropriate TCC solenoid terminals. Solenoid resistance should be greater than 20 ohms.
Torque Converter Lock-Up Signal At Transmission
- Warm engine to operating temperature. Raise vehicle and support drive wheels. Support suspension where necessary to prevent damage to drive axles.
- Disconnect torque converter clutch harness connector at transmission. Connect a test light between appropriate torque converter clutch harness connector terminals. Start engine and place transmission in Drive. Accelerate vehicle to 45 MPH and note test light.
- If test light does not illuminate, check for open or short to ground in solenoid power supply circuit of torque converter clutch harness connector. Also, check for open in ground circuit between torque converter clutch harness connector and PCM. If circuit is okay, see «TORQUE CONVERTER LOCK-UP SIGNAL FROM PCM»(ref-9314-S38044283752000101700000) .
Torque Converter Lock-Up Signal From PCM
- Warm engine to operating temperature. Raise vehicle and support drive wheels. Support suspension where necessary to prevent damage to drive axles.
- Connect a test light to battery voltage. Touch TCC control driver terminal with test light. Accelerate vehicle to 45 MPH and note test light. If test light does not illuminate, problem is a faulty PCM connector or PCM.