P340D Porsche Panamericana OBD Code

OBD/2 P340D error code description and symptoms.

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

Circuit High Input codes like P340D are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

P340D Porsche Panamericana Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P340D light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If system power relay circuit short to battery so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the system power relay circuit short to battery.

Common Causes of Porsche Panamericana P340D OBD2 Code

A common cause of code P340D is the failure of System Power Relay Circuit Short to Battery, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Faulty Crankshaft Position Sensor (POS)
Faulty front heated oxygen sensor
Faulty oil control valve (OCV)

P340D is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

P340D Porsche Panamericana OBD Code

P340D Porsche Panamericana Error Code Repair Process :

Common Causes of Porsche Panamericana P340D OBD2 Code

P340D code for other Porsche cars