What are the possible causes of DTC P1300 Chevrolet?
NOTE: The causes listed may not be a complete list of all potential problems and there may be other causes.
- Faulty ignition coil 1
- Ignition coil 1 harness is open or shorted
- Poor electrical connection in ignition coil 1 circuit
- Faulty Powertrain Control Module (PCM)
How to repair DTC P1300 Chevrolet?
Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for P1300 Chevrolet questions and answers:
What are the possible symptoms of P1300 Chevrolet code?
- Engine light on (or service engine soon warning light)
What does Chevrolet P1300 code mean?
The Diagnostic Trouble Code (DTC) ignition coil primary feedback circuit monitors the primary circuits of individual ignition coils to ensure the success of an ignition event. The ignition trigger signal and ignition safety input signal provide crucial information for controlling ignition system timing and activating the safety function. Based on the initial timing angle, calculated from crankshaft and camshaft position signals, the Powertrain Control Module (PCM) calculates the ignition trigger signal. The ignition trigger signal is then sent to the ignition control circuit located in each ignition coil. The ignition control circuits initiate the ignition dwell period by commanding the power transistor ON. When the PCM determines the appropriate time to provide spark, the PCM turns off the ignition trigger signal. In response to the PCM signal, the ignition coil control circuit cuts off the power transistor, producing a high voltage discharge from the secondary coil windings. After a spark has occurred, the control circuit returns an ignition safety input signal to the PCM, confirming that an ignition event has taken place. If the ignition safety input signal is not received by the PCM, a cylinder-specific DTC will be set. Whenever the safety input signal is lost, engine operation switches to safety function. If engine load exceeds certain parameters during the safety function, FUEL CUT-OFF mode is activated and fuel injector operation is interrupted. Suspending fuel injection in FUEL CUT-OFF mode protects the catalytic converter from damage. Damage can occur when excess unburned fuel reaches the converter and causes catalyst overheating.