Nissan Note [1006/1872] Consult ii reference value in data monitor mode

Nissan Note [1006/1872] Consult ii reference value in data monitor mode
EC-1006
[HR (WITH EURO-OBD)]
DTC P0141 HO2S2 HEATER
DTC P0141 HO2S2 HEATER
PFP:23710
Description
BBS004CW
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
CONSULT-II Reference Value in Data Monitor Mode
BBS004CX
Specification data are reference values.
On Board Diagnosis Logic
BBS004CY
Sensor Input Signal to ECM ECM Function Actuator
Camshaft position sensor (PHASE)
Engine speed
Heated oxygen sensor 2
heater control
Heated oxygen sensor 2 heater
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Engine coolant tempera-
ture
Mass air flow sensor Amount of intake air
Engine speed Heated oxygen sensor 2 heater
Above 3,600 rpm OFF
Below 3,600 rpm after the following conditions are met.
Engine: After warming up
Keeping the engine speed between 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute under no load
ON
MONITOR ITEM CONDITION SPECIFICATION
HO2S2 HTR (B1)
Engine speed: Above 3,600 rpm OFF
Below 3,600 rpm after the following conditions are met.
Engine: After warming up
Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute
and at idle for 1 minute under no load
ON
DTC No.
Trouble diagnosis
name
DTC detecting condition Possible cause
P0141
0141
Heated oxygen
sensor 2 heater
control circuit
The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)
Harness or connectors
(The heated oxygen sensor 2 heater circuit
is open or shorted.)
Heated oxygen sensor 2 heater

Содержание