Toyota Celica 2005 Repair Manual page 562

TID $04: HO2S heater
TLT CID
Multiplied by 0.000076
1 $01
(A)
Multiplied by 0.000076
1 $02
(A)
WIRING DIAGRAM
Refer to DTC P0130 on page DI−411.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand−held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air−fuel ratio was lean
or rich, as well as other data from the time when a malfunction occurred.
1 Check resistance of heated oxygen sensor heater.
E1−
OK
2005 CELICA (RM1131U)
DIAGNOSTICS
Unit Conversion
Maximum HO2S heater current
(Bank 1 Sensor 1)
Maximum HO2S heater current
(Bank 1 Sensor 2)
OX
A19287
− ENGINE (2ZZ−GE)
Description of Test Data
PREPARATION:
Disconnect the heated oxygen sensor connector.
CHECK:
Measure resistance between the terminals HT and +B of the
heated oxygen sensor.
OK:
Resistance: 11 to 16 Ω (20_C)
NG Replace heated oxygen sensor.
561
Description of Test Limit
Malfunction threshold for HO2S heater
Malfunction threshold for HO2S heater
DI−363