Loading ...
Loading ...
Loading ...
Description
NGEC0180
SYSTEM DESCRIPTION
NGEC0180S01
Sensor Input Signal to ECM
ECM func-
tion
Actuator
Camshaft position sensor Engine speed
Heated
oxygen
sensor 2
heater
(rear) con-
trol
Heated oxygen sensor 2 heater
(rear)
The ECM performs ON/OFF control of the heated oxygen sensor 2 (rear) heater corresponding to the engine
speed.
OPERATION
NGEC0180S02
Engine condition Heated oxygen sensor 2 heater (rear)
Ignition switch ON
Engine stopped
OFF
Engine is running. ON
CONSULT-II Reference Value in Data Monitor
Mode
NGEC0181
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
HO2S2 HTR (B1)
쐌 Engine speed: Idle [After driving for 2 minutes at a speed of 70 km/h
(43 MPH) or more]
ON
쐌 Ignition switch ON (Engine stopped) OFF
ECM Terminals and Reference Value
NGEC0182
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
122 R/B
Heated oxygen sensor 2
heater (rear)
[Engine is running]
쐌 After driving for 2 minutes at a speed of 70 km/h
(43 MPH) or more
Approximately 0.4V
[Ignition switch “ON”]
쐌 Engine stopped
BATTERY VOLTAGE
(11 - 14V)
On Board Diagnosis Logic
NGEC0183
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0141 쐌 The current amperage in the heated oxygen sensor 2
heater (rear) circuit is out of the normal range.
[An improper voltage drop signal is sent to ECM through
the heated oxygen sensor 2 heater (rear).]
쐌 Harness or connectors
[The heated oxygen sensor 2 heater (rear) circuit
is open or shorted.]
쐌 Heated oxygen sensor 2 heater (rear)
DTC P0141 HEATED OXYGEN SENSOR 2 HEATER (REAR)
KA24DE
Description
EC-275
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
Loading ...
Loading ...
Loading ...