ON-BOARD DIAGNOSTIC
01–02–9
01–02
P0134 Front HO2S no activity detected
•
The PCM monitors the front HO2S element impedance when the following conditions are met. If the front
HO2S element impedance is 50 ohms or more, the PCM determines that front HO2S is not activated.
MONITORING CONDITIONS
—
HO2S, HO2S heater and TWC Repair Verification Drive Mode
—
Following conditions are met
•
Time from engine start is above 40 s (ECT when engine start is 20
°
C {68
°
F}).
P0137 Rear HO2S circuit low input
•
The PCM monitors input voltage from rear HO2S. If the input voltage from the rear HO2S is below 0.1 V for
35.2 s the PCM determines that circuit input is low.
MONITORING CONDITIONS
—
HO2S, HO2S heater and TWC repair verification drive mode
—
Following conditions are met.
•
Engine speed is above 1,500 rpm.
•
Engine coolant temperature is above 70
°
C {158
°
F}.
•
Fuel injector control in rear HO2S closed loop control.
•
The PCM monitors the input voltage from the rear HO2S when the following conditions are met. Under the
following monitoring conditions, if the input voltage from the rear HO2S does not even exceed 0.1 V though
the short term fuel trim is controlled, the PCM determines that sensor circuit input is low.
P0411 Secondary air injection system incorrect upstream flow
•
The PCM monitors the front HO2S output current when the Secondary air injection system is operating. If the
output current is less than the specification, the PCM determines that there is a Secondary air injection system
problem.
P050A Cold start idle air control system performance
•
The PCM monitors actual idle speed while fast idle up correction operating. If the idle speed is out of specified
range, the PCM determines that the idle air control has performance problem.
End Of Sie
KOEO/KOER SELF-TEST
EHU010200000104
•
Differences between the 2006 MY and 2005 MY KOEO/KOER self-test items are shown below.
KOEO/KOER self-test table
×
: Applicable
—: Not applicable
DTC No.
Condition
Test condition
2006 MY
2005 MY
KOEO
KOER
P0030
←
Front HO2S heater control circuit problem
×
×
P0031
←
Front HO2S heater control circuit low
×
×
P0032
←
Front HO2S heater control circuit high
×
×
P0037
←
Rear HO2S heater control circuit low
×
×
P0038
←
Rear HO2S heater control circuit high
×
×
P0076
←
VDI solenoid valve control circuit low
×
×
P0077
←
VDI solenoid valve control circuit high
×
×
P0101
←
MAF sensor circuit range/performance problem
—
—
P0102
←
MAF sensor circuit low input
×
×
P0103
←
MAF sensor circuit high input
×
×
P0107
←
BARO sensor circuit low input
×
×
P0108
←
BARO sensor circuit high input
×
×
P0111
←
IAT sensor circuit range/performance problem
—
—
P0112
←
IAT sensor circuit low input
×
×
P0113
←
IAT sensor circuit high input
×
×
P0116
—
Engine coolant temperature circuit range/performance
—
—
P0117
←
ECT sensor circuit low input
×
×
P0118
←
ECT sensor circuit high input
×
×
P0122
←
TP sensor No.1 circuit low input
×
×
P0123
←
TP sensor No.1 circuit high input
×
×
P0125
←
Insufficient coolant temperature for closed loop fuel control
—
—
P0126
←
Insufficient coolant temperature for stable operation
—
—
P0130
←
Front HO2S circuit problem
×
×
P0131
←
Front HO2S circuit low voltage
×
×
P0132
←
Front HO2S circuit high voltage
×
×