What are the possible causes of DTC P1320?
NOTE: The listed causes may not be a complete list of all potential issues and there may be other causes.
- Faulty power transistor unit integrated into the ignition coil
- Open or short circuit in the primary ignition circuit (circuit to ignition coils)
- Poor electrical connection in the primary ignition circuit (circuit to ignition coils)
- Faulty ignition system capacitor
- Crankshaft position sensor circuit
How to repair DTC P1320?
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.
What are the possible symptoms of code P1320?
- Check engine light on (or engine maintenance warning light soon)
What does code P1320 mean?
The ignition signal from the engine control module (ECM) is sent and amplified by the power transistor. The power transistor activates and deactivates the primary circuit of the ignition coil. This on-off operation induces the appropriate high voltage in the secondary circuit of the coil. The diagnostic trouble code (DTC) will be set when the ignition signal in the primary circuit is not sent to the engine control module during engine starting or operation.