Toyota Celica 2005 Repair Manual page 313

DI−114
TYPICAL ENABLING CONDITIONS
Item
The monitor will run whenever this DTC is
not present
There is a history that following conditions
1 and 2 were met:
1. Vehicle speed
2. Engine speed
Time after engine start
Idle
Fuel system status
Vehicle speed
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria
Either of the following conditions 1 or 2 is met:
1. Front oxygen sensor voltage is 0.55 V or less
2. Front oxygen sensor voltage is 0.4 V or more
COMPONENT OPERATING RANGE
Parameter
Heated oxygen sensor voltage in normal condition
O2S TEST RESULT
Refer to page DI−3 for detailed information.
Front HO2S voltage monitor
If the HO2S voltage is out of the standard value, the ECM interprets this as a malfunction.
TEST ID Description of TEST DATA
$07 Minimum front HO2S voltage
$08 Maximum front HO2S voltage
2005 CELICA (RM1131U)
DIAGNOSTICS − ENGINE (1ZZ−FE)
Minimum
40 km/h (24.9 mph)
900 rpm
120 sec.
−
Conversion Factor
N/A
N/A
312
Specification
See page DI−3
20 sec. (Continuously)
ON
Closed loop
5 km/h (3.1 mph)
Threshold
3 times or more
For 18 sec. or more
For 18 sec. or more
Standard value
0 to 1 V
Unit
V Between 0 and 0.4 V
V Between 0.55 and 1.275 V
Maximum
−
−
−
Standard Value of TEST LIMIT