P343A

DTC P343A, sometimes indicated as P343A00 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the auxiliary emissions system causing p343b, p343c, p343d, p343e, p343f iso/sae reserved.

The DTC P343A: P343B, P343C, P343D, P343E, P343F ISO/SAE Reserved code means that there is a problem with the engine or the transmission.
There are several possible causes for this code, including problems with the engine control module (ECM), the transmission control module (TCM), or the wiring between the two modules. Other possible causes include problems with the sensors or switches that are used by the ECM and TCM, or faults in the circuits that supply power to the modules.
If this code is stored, the best course of action is to have the vehicle towed to a qualified technician for diagnosis and repairs.

• P343A: P343B, P343C, P343D, P343E, P343F ISO/SAE Reserved
• P343A: ISO/SAE Reserved