Nissan Sentra Service Manual: P1148 Closed loop control
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
| P1148 | CLOSED LOOP-B1 (CLOSED LOOP-B1) | The closed loop control function does not operate even when vehicle is being driven in the specified condition. |
|
Diagnosis Procedure
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.
Refer to EC-94, "DTC Index".
P1078 EVT Control position sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1078
EXH TIM SEN/CIRC-B1
(Exhaust val ...
P117A AIR Fuel ratio
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P117A is displayed with other DTC, first perform the trouble
diagnosis for the other DTC. Refer
to EC-94, "DTC Index".
DTC No.
CON ...
Other materials:
Rear disc brake
Brake Burnishing
CAUTION:
Burnish contact surfaces between brake pads and disc rotor
according to the following procedure
after refinishing the disc rotor, replacing brake pads or if a soft pedal
occurs at very low mileage.
Be careful of vehicle speed. Brakes do not operate firmly/sec ...
P0451 EVAP Control system pressure sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0451
EVAP SYS PRES SEN
(Evaporative emission system
pressure sensor/switch range/
performance)
ECM detects a sloshing signal fro ...
VDC OFF Indicator lamp
Description
Component Function Check
1.CHECK VDC OFF INDICATOR LAMP FUNCTION
Check that VDC OFF indicator lamp in combination meter turns ON
for approximately 2 seconds after ignition
switch is turned ON.
Is the inspection result normal?
YES >> Inspection End.
NO >> Proc ...
