Toyota Celica 2005 Repair Manual page 582

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
Required sensors/components
Frequency of operation
Duration
MIL operation
Sequence of operation
TYPICAL ENABLING CONDITIONS
The monitor will run whenever these
DTCs are not present
The typical enabling condition is not avail-
able
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria
P0115:
Engine coolant temperature sensor resistance
(coolant temperature)
P0117:
Engine coolant temperature sensor resistance
(coolant temperature)
P0118:
Engine coolant temperature sensor resistance
(coolant temperature)
COMPONENT OPERATING RANGE
Parameter
Engine coolant temperature sensor resistance
2005 CELICA (RM1131U)
DIAGNOSTICS −
P0115
P0117
P0118
Engine coolant temperature sensor
Continuous
0.5 sec.
Immediate
None
581
ENGINE (2ZZ−GE)
Engine coolant temperature sensor range check
(Fluttering)
Engine coolant temperature sensor range check
(Low resistance)
Engine coolant temperature sensor range check
(High resistance)
See page DI−295
−
Threshold
Less than 79 Ω or more than 156 kΩ
(More than 140_C (284_F) or less than −40_C (−40_F))
Less than 79 Ω
(More than 140_C (284_F))
More than 156 kΩ
(Less than −40_C (−40_F))
Standard Value
79 Ω (140_C (284_F)) to 156 kΩ (−40_C (−40_F))
DI−383