Toyota Celica 2005, Repair Manual

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− DIAGNOSTICS ENGINE (2ZZ − GE)
DI − 405
2005 CELICA (RM1131U)
TYPICAL ENABLING CONDITIONS
Item
Specification
Minimum Maximum
The monitor will run whenever this DTC is
not present
See page DI − 295
Fuel cut OFF
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria Threshold
Time until ”engine coolant temperature” detection temperature reaches feedback start temperature
When the temperature at engine start is 10 ° C (50 ° F) or
more
Engine coolant temperature is less than ”closed − loop enable temperature”
when 2 min. or more passed after engine start
When the temperature at engine start is ” − 6.6 ° C (20 ° F)” to
”10 ° C (50 ° F)”
Engine coolant temperature is less than ”closed − loop enable temperature”
when 5 min. or more passed after engine start
When the temperature at engine start is − 6.6 ° C (20 ° F) or
less
Engine coolant temperature is less than ”closed − loop enable temperature”
when 20 min. or more passed after engine start
INSPECTION PROCEDURE
HINT:
S
If DTCs P0115, P0116, P0117, P0118 and P0125 are output simultaneously, the engine coolant tem-
perature sensor circuit may be open or shorted. Perform the troubleshooting of DTC P0115, P0117
or P0118 first.
S
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 determine 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 Are there any other codes (besides DTC P0125) being output?
PREPARATION:
(a) Connect the hand − held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand − held tester or the OBD II scan tool main switch ON.
(c) On the display of the hand − held tester or the OBD II scan tool, enter the following menus: DIAGNOSIS
/ ENHANCED OBD II / DTC INFO / CURRENT CODES.
CHECK:
Read the DTCs.
RESULT:
Display (DTC Output) Proceed to
P0125 A
”P0125” and other DTCs B
HINT:
If any other codes besides ”P0125” is output, perform the troubleshooting for those codes first.
B Go to relevant DTC chart (See page DI − 335).
A
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