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 MANUALSFORD2007EDGE FWD V6-3.5LREPAIR AND DIAGNOSISSTARTING AND CHARGINGSTARTING SYSTEMTESTING AND INSPECTIONPINPOINT TESTSTEST A: THE ENGINE DOES NOT CRANK
2007 Ford Edge FWD V6-3.5L
Test A: The Engine Does Not Crank
2007 Ford Edge FWD V6-3.5LSECTION Test A: The Engine Does Not Crank
PINPOINT TEST A: THE ENGINE DOES NOT CRANK
Normal Operation
Under normal operation, voltage is supplied to the ignition switch through circuit SBP27 (BU/RD). When the ignition switch is turned to the START position, voltage is sent to the smart junction box (SJB) through circuit CDC35 (BU/WH). From the SJB, voltage is sent to the starter relay coil through circuit CDC35 (BU/WH). Ground for the starter relay coil is provided from the PCM through circuit CDC12 (YE). Voltage is supplied to the starter relay through circuit SDC02 (RD). When the relay is energized, voltage is sent to the starter motor through circuit CDC25 (BN/GN).
Possible Causes
- Fuse(s)
- An open in circuit SBP27 (BU/RD), CDC35 (BU/WH), CDC12 (YE), SDC02 (RD) or CDC25 (BN/GN)
- Starter motor
- Starter relay
A1:
A2-A5:
A6-A8:
A9:
A10:
A11-A12:
A12-A13:
A13-A15:
A15-A16:
Normal Operation
Under normal operation, voltage is supplied to the ignition switch through circuit SBP27 (BU/RD). When the ignition switch is turned to the START position, voltage is sent to the smart junction box (SJB) through circuit CDC35 (BU/WH). From the SJB, voltage is sent to the starter relay coil through circuit CDC35 (BU/WH). Ground for the starter relay coil is provided from the PCM through circuit CDC12 (YE). Voltage is supplied to the starter relay through circuit SDC02 (RD). When the relay is energized, voltage is sent to the starter motor through circuit CDC25 (BN/GN).
Possible Causes
- Fuse(s)
- An open in circuit SBP27 (BU/RD), CDC35 (BU/WH), CDC12 (YE), SDC02 (RD) or CDC25 (BN/GN)
- Starter motor
- Starter relay
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.