Nissan GT-R (R35) · Service Manual ENGINE

P1148, P1168 CLOSED LOOP CONTROL

VR38

P1148 P1168

 
 DTC DETECTION LOGIC

NOTE：
 DTC P1148 or P1168 is displayed with another DTC for A/F sensor 1.
Perform the trouble diagnosis for the corresponding DTC.

DTC No.
 		Trouble diagnosis name
 		DTC detecting condition
 		Possible cause
P1148
 		Closed loop control function (bank 1)
 		The closed loop control function for bank 1 does not operate even when vehicle is being driven in the specified condition.
  • Harness or connectors
    (The A/F sensor 1 circuit is open or shorted.)
  • A/F sensor 1
  • A/F sensor 1 heater
P1168
 		Closed loop control function (bank 2)
 		The closed loop control function for bank 2 does not operate even when vehicle is being driven in the specified condition.