Toyota Celica 2005 Repair Manual page 341

DI−142
COMPONENT OPERATING RANGE
Parameter
Heated oxygen sensor voltage
O2S TEST RESULT (MODE 05 DATA)
Refer to page DI−3 for detailed information.
Rear HO2S voltage monitor
If the HO2S sensor voltage is out of the standard value, the ECM interprets this as a malfunction.
TEST ID
$07
$08
If the time required to change is out of the standard value, the ECM interprets this as a malfunction.
TEST ID
$31
$32
Rear HO2S slow response monitor
If the elapsed time is out of the standard value, the ECM interprets this as a malfunction.
TEST ID
$37
Rear HO2S element monitor
If all the values ($81, $84, $85 and $87) are out of the standard values, the ECM interprets this as a malfunc-
tion.
TEST ID
$81
$84
$85
$87
WIRING DIAGRAM
Refer to DTC P0130 on page DI−112.
2005 CELICA (RM1131U)
DIAGNOSTICS
Description of TEST DATA
Minimum rear HO2S voltage
Maximum rear HO2S voltage
Description of TEST DATA
Time to change from LEAN (<0.4
V) to RICH (y0.5 V)
Time to change from RICH (y0.5
V) to LEAN (<0.4 V)
Description of TEST DATA
Until rear HO2S voltage drops to
0.2 V after fuel−cut starting
Description of TEST DATA
Percentage of monitoring time
when the HO2S voltage is less
than 0.05 V
Percentage of monitoring time
when the HO2S voltage is more
than 0.7 V
Time when the HO2S voltage is
0.45 V or more
Percentage of monitoring time
when the HO2S voltage is more
than 0.45 V
− ENGINE (1ZZ−FE)
Standard Value
Conversion Factor
N/A
N/A
Conversion Factor
N/A
N/A
Conversion Factor
N/A
Conversion Factor
Multiplied by 0.3906
Multiplied by 0.3906
Multiplied by 0.2621
Multiplied by 0.3906
340
0 to 1 V
Unit
V
V
Unit
sec.
sec.
Unit
sec.
Unit
%
%
sec.
%