FI SYSTEM DIAGNOSIS 4-31
DTC No.
DETECTED
ITEM
DETECTED FAILURE CONDITION CHECK FOR
C44
HO2 sensor HO2 sensor output voltage is not input
to ECM during engine operation and
running condition.
(Sensor voltage 0.1 V)
In other than the above value, C44
(P0130) is indicated.
HO2 sensor circuit open or
shorted to ground
P0130
C44
The Heater can not operate so that
heater operation voltage is not supply
to the oxygen heater circuit, C44
(P0135) is indicated.
HO2 sensor lead wire/coupler
connection
Battery voltage supply to the
HO2 sensor
P0135
C49 PAIR control
solenoid
valve
PAIR control solenoid valve voltage is
not input to ECM.
PAIR control solenoid valve, lead
wire/coupler
P1656
C60 Cooling fan
relay
Cooling fan relay signal is not input to
ECM.
Cooling fan relay, lead wire/cou-
pler connectionP0480
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