What are the possible causes of DTC P1320 Nissan?
NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.
- Faulty power transistor unit integrated into the ignition coil
- Open or shorted primary ignition circuit (circuit to ignition coils)
- Poor electrical connection of the primary ignition circuit (circuit to ignition coils)
- Faulty ignition system condenser
- Crankshaft position sensor circuit
Nissan P1320 Code Technical Notes
The most common cause that will trigger the P1320 code is the ignition coils – one or more ignition coils may be failing. Even if the coils are operating properly, the resistance of one or more coils is higher or lower than expected by the Engine Control Module (ECM). Measuring resistance with the coil out of the vehicle may show no failure – typically the coil fails under harsh conditions (hard acceleration) or at certain temperatures.
The P1320 code means there is a problem with the “ignition coil” or ignition coil wire. For some models without individual ignition coils, the ignition coil is located inside the distributor and the distributor must be replaced to resolve the issue.
How to fix Nissan DTC P1320?
Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
What are the possible symptoms of Nissan P1320 code?
- Check engine light on (or service engine soon warning light)
What does Nissan P1320 code 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 ignition coil primary circuit. This on-off operation induces the appropriate high voltage in the coil secondary circuit. 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.