Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004ECONOLINE E150, VAN CARGO, 4.6 WREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 313 (HVAC CONTROL SYSTEM)DIAGNOSIS AND TESTINGCLIMATE CONTROL SYSTEMCONNECTOR CIRCUIT REFERENCEPOWERTRAIN CONTROL MODULE C175
2004 Ford Econoline E150, Van Cargo, 4.6 W
Powertrain Control Module C175
2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION Powertrain Control Module C175
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
POWERTRAIN CONTROL MODULE C175 CIRCUIT REFERENCE
| Pin Number (s) | Circuit Designation/Description | Normal Condition/Measurement |
|---|---|---|
| 41 | CKT 347 (BK/YE) A/C cycling switch input to PCM | Greater than 10 volts with the ignition on and engine running. |
| 69 | CKT 331 (PK/YE) A/C compressor clutch relay control | Greater than 10 volts with the ignition on. |
| 86 | CKT 349 (TN/LG) A/C pressure transducer input to PCM | Greater than 10,000 ohms to chassis ground and 0 volts. |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.