Toyota Celica 2005 Repair Manual page 762

DTC No.
Idle speed continues to vary greatly from target speed
P0505 (Function check 2 trip detection logic)
(Range check 1 trip detection logic)
MONITOR STRATEGY
Related DTCs
Required sensors/components
Frequency of operation
Duration
MIL operation
Sequence of operation
TYPICAL ENABLING CONDITION
Item
The monitor will run whenever these
DTCs are not present
Engine
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria
Either of the following conditions is met:
1. Frequency that both of the following conditions (a) and (b)
are met:
(a). Engine RPM − target engine RPM
(b). Vehicle condition
2. Frequency that both of the following conditions (a) and (b)
are met:
(a). Engine RPM − target engine RPM
(b). IAC flow rate learning value
COMPONENT OPERATING RANGE
Parameter
P0505:
Time while no missing voltage change
2005 CELICA (RM1131U)
DIAGNOSTICS
DTC Detecting Condition
Main sensors/components
Related sensors/components
Once per driving cycle
10 min.
2 driving cycles
None
Minimum
− ENGINE (2ZZ−GE)
S Air induction system
S Electric throttle control system
S PCV piping
P0505
Specification
See page DI−295
Running
Less than −100 rpm, or more than 200 rpm
(intake air temperature is 0°C (32°F) or more)
Less than −100 rpm, or more than 300 rpm
(intake air temperature is less than 0°C (32°F))
Stop after vehicle was driven by 10 km/h (6.25 mph) or more
Less than −100 rpm, or more than 200 rpm
(intake air temperature is 0°C (32°F) or more)
Less than −100 rpm, or more than 300 rpm
(intake air temperature is less than 0°C (32°F))
0.43 or less, or more than 2.75
761
Trouble Area
Idle air control valve
Crankshaft position sensor
Vehicle speed sensor, Engine coolant tempera-
ture sensor
Maximum
Threshold
Condition 1 or 2
5 times or more
Once
Standard value
0.5 sec. or more
DI−563