P048B Nissan Patrol OBD Code

OBD/2 P048B 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.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

P048B Nissan Patrol Error Code Repair Process :

If your variable cam timing overadvanced (bank #2) check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P048B and engine control unit are in charge of monitoring a bunch of different variable cam timing overadvanced (bank #2), and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Nissan Patrol P048B OBD2 Code

A common cause of code P048B is the failure of Variable Cam Timing Overadvanced (Bank #2), but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
1Camshaft Position Sensor circuit poor electrical connection
Fuel tank leaking
Open circuits caused by damage to wiring.

P048B 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.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P048B Nissan Patrol OBD Code

P048B Nissan Patrol Error Code Repair Process :

Common Causes of Nissan Patrol P048B OBD2 Code

P048B code for other Nissan cars