Suzuki Baleno Manual page 1415

DTC P0340 CAMSHAFT POSITION SENSOR CIRCUIT MALFUNCTION
WIRING DIAGRAM
1. Camshaft position sensor
SYSTEM DESCRIPTION
The CMP sensor located on the transmission side of cylinder head consists of the signal generator (photo transis-
tors) and signal rotor (slits plate).
The signal generator generates Reference signal and Position signal through two types of slits in the slit plate which
turns together with the camshaft.
Reference signal
The CMP sensor generates 4 pulses of signals each of while has a different waveform length while the camshaft
makes one full rotation.
Based on these signals, ECM judges which cylinder piston is in the compression stroke.
Position signal
The CMP sensor generates 360 pulses of signals while the camshaft makes one full rotation (i.e., 1 pulse per 1
movement of the camshaft).
Based on these signals, ECM judges the waveform length of Reference signal, the engine speed and piston posi-
tion.
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
DTC will set when any one of the following conditions is detected.
CMP sensor reference signal is not input while engine start signal
is input.
Pulse number of CMP sensor position signal per reference signals
is out of specification.
ENGINE GENERAL INFORMATION AND DIAGNOSIS (J18 ENGINE WITH WU TWC) 6-2-67
TROUBLE AREA
CMP sensor
CMP sensor circuit
Engine start signal circuit
ECM
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