Pinpoint Test KP: Charge Air Cooler (CAC): Introduction: Notes
This pinpoint test is intended to diagnose the following:
- CAC coolant temperature sensor (12A648)
- CAC pump (8501)
- harness circuits: CAC, CACCTS, SIGRTN, PUMPPWR and GND
- PCM (12A650)
Courtesy of FORD MOTOR CO.
TEMPERATURE SENSOR VOLTAGE AND RESISTANCE SPECIFICATIONS
| Temperature |
Temperature Sensor Values |
| °C |
°F |
Voltage |
Resistance (K ohms) |
| 120 |
248 |
0.28 |
1.18 |
| 110 |
230 |
0.36 |
1.55 |
| 100 |
212 |
0.47 |
2.07 |
| 90 |
194 |
0.61 |
2.80 |
| 80 |
176 |
0.80 |
3.84 |
| 70 |
158 |
1.05 |
5.37 |
| 60 |
140 |
1.37 |
7.70 |
| 50 |
122 |
1.77 |
10.97 |
| 40 |
104 |
2.23 |
16.15 |
| 30 |
86 |
2.74 |
24.27 |
| 20 |
68 |
3.26 |
37.30 |
| 10 |
50 |
3.73 |
58.75 |
| 0 |
32 |
4.14 |
95.85 |
| -10 |
14 |
4.45 |
160.31 |
Courtesy of FORD MOTOR CO.
| Pin |
Circuit |
| 2 |
SIGRTN (Signal Return) |
| 1 |
CACCTS (Charge Air Cooler Coolant Temperature Signal) |
Courtesy of FORD MOTOR CO.
| Pin |
Circuit |
| 3 |
CAC (Charge Air Cooler) |
| 1 |
GND (Ground) |
| 2 |
PUMPPWR (Pump Power) |