Toyota Celica 2005 Repair Manual page 267

DI−68
COMPONENT OPERATING RANGE
Parameter
Heated oxygen sensor heater current under the following
conditions:
(a) Engine has been warmed up
(b) Engine is idling
(c) Battery voltage is 11 to 14 V
MONITOR RESULT
Refer to page DI−3 for detailed information.
The test value and test limit information are described as shown in the following table. Check the monitor
result and test values after performing the monitor drive pattern (see page DI−33).
TID (Test Identification Data) is assigned to each emissions−related component.
S
TLT (Test Limit Type):
S
If TLT is 0, the component is malfunctioning when the test value is higher than the test limit.
If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
CID (Component Identification Data) is assigned to each test value.
S
Unit Conversion is used to calculate the test value indicated on generic OBD ll scan tools.
S
TID $04: HO2S heater
TLT CID
Multiply by 0.000076
1 $01
(A)
Multiply by 0.000076
1 $02
(A)
WIRING DIAGRAM
Refer to DTC P0130 on page DI−112.
2005 CELICA (RM1131U)
DIAGNOSTICS
Unit Conversion
Maximum HO2S heater current
(Bank 1 Sensor 1)
Maximum HO2S heater current
(Bank 1 Sensor 2)
− ENGINE (1ZZ−FE)
Description of Test Data
266
Standard Value
0.4 to 1.0 A
Description of Test Limit
Malfunction threshold for HO2S heater
Malfunction threshold for HO2S heater