Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne di eg5vzfe cip0335
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DI-66
DIAGNOSTICS - ENGINE (5VZ-FE)
DI0S5-14
DTC P0335 Crankshaft Position Sensor "A" Circuit Mal-
function
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 ECM detects the standard crankshaft angle based on the G signal, and the actual crankshaft angle and
the engine speed by the NE signal.
DTC No. DTC Detecting Condition Trouble Area
No crankshaft position sensor signal to ECM during cranking S Open or short in crankshaft position sensor circuit.
(2 trip detection logic) S Crankshaft position sensor
osition
P0335
No crankshaft position sensor signal to ECM with engine S Crankshaft timing pulley
speed 600 rpm or more (2 trip detection logic) S ECM
WIRING DIAGRAM
ECM
C1
Camshaft Position Sensor
13
1 R G2
E10
2 G
12
1 L NE+
E10
G 21
2 G NE-
E10
E2
C2
Crankshaft Position Sensor
P25474
INSPECTION PROCEDURE
HINT:
S Perform troubleshooting of DTC P0335 first. If no trouble is found, troubleshoot the following mechani-
cal systems.
S Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because freeze frame
records the engine conditions when the malfunction is detected. When troubleshooting, it is useful for
determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel
ratio was lean or rich, etc. at the time of the malfunction.
2002 4RUNNER (RM887U)
Author : Date : 242
DI-67
DIAGNOSTICS - ENGINE (5VZ-FE)
1 Check resistance of crankshaft position sensor (See page IG-13 ).
Reference: INSPECTION USING OSCILLOSCOPE
G and NE Signal Waveform
During cranking or idling, check the waveforms between termi-
5V
/Division nals G2 and NE-, and NE+ and NE- of the ECM connector.
G2 HINT:
The correct waveforms are as shown.
NE
20 msec./Division (Idling)
5V
/Division
G2
NE
FI7059 10 msec./Division (Idling)
FI7060 A00069
NG Replace crankshaft position sensor.
OK
2 Check for open and short in harness and connector between ECM and crank-
shaft position sensor (See page IN-28 ).
NG Repair or replace harness or connector.
OK
3 Inspect sensor installation and teeth of crankshaft timing pulley.
NG Tighten the sensor. Replace crankshaft timing
pulley.
OK
Check and replace ECM (See page IN-28 ).
2002 4RUNNER (RM887U)
Author : Date : 243
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