A14629
ECM
G2
NE+
G
1
2
1
2
Camshaft Position Sensor
Crankshaft Position Sensor
12
21
E7
13
NE–
L
G
R
G
E7
E7
–
DIAGNOSTICS
ENGINE (5VZ–FE)
DI–315
577
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
DTC
P0335
Crankshaft Position Sensor ”A” Circuit
DTC
P0339
Crankshaft Position Sensor ”A” Circuit
CIRCUIT DESCRIPTION
The crankshaft position sensor, which detects the engine speed and crankshaft angle signal (NE signal),
has been installed on the oil pump body.
The NE signal plate has 34 teeth. 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 Detecting 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
speed 600 rpm or more (2 trip detection logic)
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
Crankshaft timing pulley
ECM
WIRING DIAGRAM
DI0S5–17
FI7059
FI7060
A00069
G and NE Signal Waveforms
G
G
NE
NE
5 V
/Division
5 V
/Division
20 msec./Division (Idling)
10 msec./Division (Idling)
DI–316
–
DIAGNOSTICS
ENGINE (5VZ–FE)
578
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
INSPECTION PROCEDURE
HINT:
Perform a troubleshooting of DTC P0335 first. If no trouble is found, troubleshoot the following me-
chanical systems.
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 deter-
mining whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel r