P0656 Infiniti Fuel Level Output Circuit Malfunction

P0656 Infiniti Fuel Level Output Circuit Malfunction

Possible causes
– Faulty Fuel Level Gauge
– Fuel Level Gauge harness is open or shorted
– Fuel Level Gauge circuit poor electrical connection
– Faulty Powertrain Control Module (PCM)
What about the obd code?
If the fault detection circuit senses a voltage other than what the PCM expects, the fault line status changes causing the P0656 Infiniti code will set.
Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
P0656 Infiniti Description

The Powertrain Control Module (PCM) controls the fuel gauge through the fuel gauge control circuit. The PCM supplies a pulse width modulated (PWM) duty cycle signal to control the fuel gauge. The PCM receives the fuel level information from the fuel level sensor.

The PCM controls the gauge by grounding the control circuit via an internal switch called a driver. The primary function of the driver is to supply the ground for the controlled component. Each driver has a fault line which the PCM monitors.

Infiniti Vehicle:Infiniti EX35,Infiniti FX35,Infiniti FX50,Infiniti G25,Infiniti G37,Infiniti M35,Infiniti M37,Infiniti M56,Infiniti QX562013 Infiniti,2012 Infiniti,2011 Infiniti,2010 Infiniti,2009 Infiniti,2008 Infiniti,2007 Infiniti,2006 Infiniti,2005 Infiniti,2004 Infiniti,2003 Infiniti,2002 Infiniti,2001 Infiniti,2000 Infiniti,1999 Infiniti,1998 Infiniti,1997 Infiniti,1996 Infiniti,

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