Toyota T100 1996 Service Manual page 458

DI−194
DTC P0340
CIRCUIT DESCRIPTION
The camshaft position sensor which detects the crankshaft angle signal (G signal), has been installed on
the front of right bank cylinder head. The timing rotor has been integrated with the right bank camshaft timing
pulley. When the camshafts rotate, the protrusion on the timing rotor and the air gap on the pickup coil
change, causing fluctuations, in the magnetic field and generating an electromotive force in the pickup coil.
The NE signal plate has 34 teeth and is mounted on the crankshaft. The NE signal sensor generates 34
signals for every engine revolution. The ECM detects the standard crankshaft angle based on the G signals
and the actual crankshaft angle and the engine speed by the NE signals.
DTC No.
No camshaft position sensor signal to ECM during cranking
(2 trip detection logic)
P0340
No camshaft position sensor signal to ECM with engine
speed 600 rpm or more
WIRING DIAGRAM
Refer to DTC P0335 on page DI−191.
INSPECTION PROCEDURE
1 Check resistance of camshaft position sensor (See page IG−1).
Reference INSPECTION USING OSCILLOSCOPE
Refer to DTC P0335 on page DI−191.
OK
2 Check for open and short in harness and connector between ECM and camshaft
position sensor (See page IN−26).
OK
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
Camshaft Position Sensor Circuit
Malfunction
DTC Detecting Condition
NG
NG
− ENGINE (5VZ−FE)
S Open or short in camshaft position sensor circuit
S Camshaft position sensor
S Starter
S ECM
Replace camshaft position sensor.
Repair or replace harness or connector.
Trouble Area
DI0UW−02