Toyota Celica 2005 Repair Manual page 457

DI−258
MONITOR STRATEGY
Related DTCs
Required sensors/components
Frequency of operation
Duration
MIL operation
Sequence of operation
TYPICAL ENABLING CONDITIONS
Item
The monitor will run whenever these
DTCs are not present
P0505
Battery voltage
Engine coolant temperature
Idle
Vehicle speed
Engine speed
P0511:
Output signal duty
Battery voltage
Time after first missing of voltage change
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria
P0505 Functional check:
Following conditions are met :
At idle (After running at more than 10 km/h (6.2 mph) per
trip)
1. Either of the following conditions is met:
(a) Deviation of engine speed
(When shift position is in N or A/C is ON)
(b) Deviation of engine speed
(When shift position is in D or A/C is OFF)
2. Either of the following conditions is met:
(a) IAC flow rate learning value (A/C OFF)
(b) IAC flow rate learning value (A/C ON)
3. Number of detections
P0511:
Number of missing output voltage change
2005 CELICA (RM1131U)
DIAGNOSTICS −
P0505
P0511
Main sensors/components
Related sensors/components
P0505 : Once per driving cycle
P0511 : Continuous
P0505 : 10 min.
P0511 : 10 sec.
P0505 : 2 driving cycles
P0511 : Immediate
None
Minimum
11 V
75_C (167_F)
−
400 rpm
10%
10V
10 sec.
456
ENGINE (1ZZ−FE)
Idle air control valve
Idle air control valve
Crankshaft position sensor
Vehicle speed sensor, Engine coolant tempera-
ture sensor
Specification
See page DI−3
ON (more than 6 sec.)
Threshold
Conditions 1, 2 and 3
Condition (a) or (b)
Less than − 100 rpm or more than 200 rpm
Less than − 100 rpm or more than 150 rpm
Condition (a) or (b)
−0.2 L/sec. or less or 0.88 L/sec. or more
0.22 L/sec. or less or 0.98 L/sec. or more
5 times/trip
2,000 times or more
Maximum
−
−
3 km/h (1.9 mph)
−
90%
−
−