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 MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - POWERTRAIN DTC CHARTS AND DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISP1436 - A/C EVAPORATOR AIR TEMPERATURE CIRCUIT LOW
2007 Ford Fusion SEL, 2.3 Z, Standard
P1436 - A/C Evaporator Air Temperature Circuit Low
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION P1436 - A/C Evaporator Air Temperature Circuit Low
P1436 - A/C EVAPORATOR AIR TEMPERATURE CIRCUIT LOW
| Description: | Indicates the A/CET signal input was less than the self-test minimum. The self-test minimum is 0.13 volts. | |||
| Possible Causes: |
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| Diagnostic Aids: | The powertrain control module (PCM) sources a low current 5 volt reference on the A/CET circuit (this voltage can be measured with the sensor disconnected). As the A/C evaporator air temperature changes, the A/CET circuit resistance to SIG RTN (ground) changes (which changes the voltage the PCM detects). When the A/CET signal is detected below the self-test minimum, check for shorts to SIG RTN or ground which would pull the voltage low. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST DJ . | |||
RENDER: 1.0x
NO RELATED
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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.