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SVT Shelby GT500
2014 GT500 won’t start
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<blockquote data-quote="Vinnie_B" data-source="post: 17020365" data-attributes="member: 201678"><p>Im very familiar with PO300 code. It just needs to be diagnosed properly. ***That code has nothing to do with a no start.</p><p></p><p></p><p>Do you have any other DTC codes? Anyone of these could be causing your no start. Check the following</p><p></p><p></p><ul> <li data-xf-list-type="ul">Anti-theft system</li> <li data-xf-list-type="ul">Battery</li> <li data-xf-list-type="ul">Battery cables</li> <li data-xf-list-type="ul">Fuse</li> <li data-xf-list-type="ul">Starter relay</li> <li data-xf-list-type="ul">Starter motor</li> <li data-xf-list-type="ul">Ignition switch</li> <li data-xf-list-type="ul">PCM</li> <li data-xf-list-type="ul">Wiring, terminal or connectors</li> <li data-xf-list-type="ul">Clutch Pedal Position (CPP) switch</li> </ul><p></p><p></p><p><strong>Normal Operation</strong></p><p></p><p>When the ignition switch is turned to the START position, the PCM receives a starter motor request signal. Voltage is supplied to the starter relay from the PCM. The PCM receives a signal from the Clutch Pedal Position (CPP) switch when the clutch pedal is fully depressed. A ground is supplied from the PCM causing the starter relay coil to energize and the relay contacts to close. This allows voltage to be supplied from Battery Junction Box (BJB) fuse 19 (30A) to the relay contacts, which then flows to the starter solenoid. The solenoid is grounded at the starter motor. Energizing the starter solenoid engages the starter drive into the ring gear and closes the solenoid contacts allowing voltage directly from the battery to the starter motor to start the engine. The PCM will disengage the starter motor based on engine running (rpm threshold), a set crank time has been exceeded or the ignition switch has been turned to the OFF position.</p><p></p><p></p><p></p><p></p><p>**Attached below is a PDF of the starting circuit. If you need any futher help let me know.</p></blockquote><p></p>
[QUOTE="Vinnie_B, post: 17020365, member: 201678"] Im very familiar with PO300 code. It just needs to be diagnosed properly. ***That code has nothing to do with a no start. Do you have any other DTC codes? Anyone of these could be causing your no start. Check the following [LIST] [*]Anti-theft system [*]Battery [*]Battery cables [*]Fuse [*]Starter relay [*]Starter motor [*]Ignition switch [*]PCM [*]Wiring, terminal or connectors [*]Clutch Pedal Position (CPP) switch [/LIST] [B]Normal Operation[/B] When the ignition switch is turned to the START position, the PCM receives a starter motor request signal. Voltage is supplied to the starter relay from the PCM. The PCM receives a signal from the Clutch Pedal Position (CPP) switch when the clutch pedal is fully depressed. A ground is supplied from the PCM causing the starter relay coil to energize and the relay contacts to close. This allows voltage to be supplied from Battery Junction Box (BJB) fuse 19 (30A) to the relay contacts, which then flows to the starter solenoid. The solenoid is grounded at the starter motor. Energizing the starter solenoid engages the starter drive into the ring gear and closes the solenoid contacts allowing voltage directly from the battery to the starter motor to start the engine. The PCM will disengage the starter motor based on engine running (rpm threshold), a set crank time has been exceeded or the ignition switch has been turned to the OFF position. **Attached below is a PDF of the starting circuit. If you need any futher help let me know. [/QUOTE]
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2014 GT500 won’t start
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