Toyota Celica 2005, Repair Manual

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− DIAGNOSTICS ENGINE (2ZZ − GE)
DI − 383
2005 CELICA (RM1131U)
Example:
The ECM calculates that the ECT is less than
− 40 _ C ( − 40 _ F), or more than 140 _ C (284 _ F), and either condi-
tion continues for 0.5 sec. or more, the ECM will set a DTC.
MONITOR STRATEGY
Related DTCs
P0115
Engine coolant temperature sensor range check
(Fluttering)
P0117
Engine coolant temperature sensor range check
(Low resistance)
P0118
Engine coolant temperature sensor range check
(High resistance)
Required sensors/components Engine coolant temperature sensor
Frequency of operation Continuous
Duration 0.5 sec.
MIL operation Immediate
Sequence of operation None
TYPICAL ENABLING CONDITIONS
The monitor will run whenever these
DTCs are not present
See page DI − 295
The typical enabling condition is not avail-
able
−
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria Threshold
P0115:
Engine coolant temperature sensor resistance
(coolant temperature) Less than 79 Ω or more than 156 k Ω
(More than 140 _ C (284 _ F) or less than − 40 _ C ( − 40 _ F))
P0117:
Engine coolant temperature sensor resistance
(coolant temperature) Less than 79 Ω
(More than 140 _ C (284 _ F))
P0118:
Engine coolant temperature sensor resistance
(coolant temperature) More than 156 k Ω
(Less than − 40 _ C ( − 40 _ F))
COMPONENT OPERATING RANGE
Parameter Standard Value
Engine coolant temperature sensor resistance 79 Ω (140 _ C (284 _ F)) to 156 k Ω ( − 40 _ C ( − 40 _ F))
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