P0381 Infiniti Glow Plug/Heater Indicator Circuit Malfunction
Possible causes
– Faulty Glow Plug
– Glow Plug harness is open or shorted
– Glow Plug circuit poor electrical connection
– Glow Plug harness is open or shorted
– Glow Plug circuit poor electrical connection
What about the obd code?
– The glow plugs are commanded OFF and the glow plug feedback is more than 2 volts. or
– The glow plugs are commanded on and the glow plug feedback is not between 5 volts and 6.2 volts.
– The glow plugs are commanded on and the glow plug feedback is not between 5 volts and 6.2 volts.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– The engine may be harder to start
– The engine may be harder to start
P0381 Infiniti Description
The glow plug system is used to assist in providing the heat required to begin combustion during cold engine temperatures. The glow plugs are heated before and during cranking, as well as initial engine operation. The engine control module (ECM) controls the glow plug ON times by monitoring coolant temperature and glow plug voltage. The California Glow Plug system has eight individual glow plug supply circuits between the controller and the glow plugs. If the feedback voltage from the controller to the ECM is not within range, DTC P0380 Infiniti will set.
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,