A12484
A18887
ECM
C1
Camshaft Position Sensor
C2
Crankshaft Position Sensor
1
2
1
2
R
G
G
NE+
NE–
G2+
E7
E7
E7
15
16
24
G
L
DI–90
–
DIAGNOSTICS
ENGINE (2RZ–FE, 3RZ–FE)
352
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
DTC
P0335
Crankshaft Position Sensor ”A” Circuit
DTC
P0339
Crankshaft Position Sensor ”A” Circuit
Intermittent
CIRCUIT DESCRIPTION
Crankshaft position sensor (NE signal) consists of a magnet, iron core and pickup coil.
The NE signal plate has 34 teeth and is mounted on the crankshaft. The NE signal sensor generates 34
signals at every engine revolution. The engine ECM detects the crankshaft angle and the engine speed
based on the NE signals, and idetify the cylinder on the G2 (Camshaft position sensor) and NE signals.
DTC No.
DTC Detection Condition
Trouble Area
P0335
No crankshaft position sensor signal to ECM during cranking
(2 trip detection logic)
No crankshaft position sensor signal to ECM with engine
d 600
(2
i d
i
l
i )
spee
rpm or more
trp etecton ogc
Open or short in crankshaft position sensor circuit
P0339
In condition (a), (b) and (c), when no crankshaft position sen-
sor (NE) signal is input for 0.05 sec. or more.
(a) Engine revolution 1,000 rpm or more
(b) STA signal is OFF
(c) 3 sec. or more has been lapsed after STA signal is switched
from ON to OFF.
Crankshaft position sensor
Signal plate (Crankshaft position sensor rotor)
ECM
WIRING DIAGRAM
DIB2E–01
A01991
A01992
A02359
G and NE Signal Waveforms 5 V/
Division
5 V/
Division
G
NE
G
NE
20 msec./Division (Idling)
10 msec./Division (Idling)
–
DIAGNOSTICS
ENGINE (2RZ–FE, 3RZ–FE)
DI–91
353
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
INSPECTION PROCEDURE
HINT:
Perform troubleshooting of DTC P0335 first. If no trouble is found, troubleshoot the following mechani-
cal system.
Read freeze frame data using the hand–held tester or the OBD II scan tool, as freeze frame data re-
cords the engine conditions when a malfunction is detected. When troubleshooting, it is useful for de-
termining whether the vehicle was r