Toyota Celica 2005 Repair Manual page 682

MONITOR DESCRIPTION
If there is no signal from the camshaft position sensor even though the engine is cranking, or if the rotation
of the camshaft and the crankshaft is not synchronized, the ECM interprets this as a malfunction of the sen-
sor.
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
P0340 Case 1 (No signal):
Starter
Minimum battery voltage while starter is
ON
P0340 Case 2 (Mis−aligned):
Engine speed
Starter
P0341:
Starter
Engine revolution angle
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria
P0340 Case 1 (No signal):
Camshaft position sensor signal
P0340 Case 2 (Mis−aligned):
Crankshaft/camshaft (judged by comparing the crankshaft position to the camshaft position)
Camshaft position sensor signal: No input in appropriate timing.
P0341:
Crankshaft/Camshaft alignment
Camshaft position sensor count
2005 CELICA (RM1131U)
DIAGNOSTICS −
P0340
P0341
Main sensors/components
Related sensors/components
Continuous
5 sec.
P0340 case 1 (no signal): 2 driving cycles
P0340 case 2 (mis−aligned), P0341: Immediate
None
Minimum
−
600 rpm
681
ENGINE (2ZZ−GE)
Camshaft position sensor (Bank 1) range check
or rationality
Camshaft position sensor (Bank 1) range check
or rationality
Camshaft position sensor
Crankshaft position sensor, Engine speed sensor
Specification
See page DI−295
ON
OFF
After OFF to ON timing
720°CA
Threshold
No signal
Mis−aligned
12 or more / 720_CA (= Engine 2 revolutions)
DI−483
Maximum
11 V
−