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DI-632
DIAGNOSTICS - ENGINE (2UZ-FE)
DIDRJ-01
DTC P0335 Crankshaft Position Sensor "A" Circuit
DTC P0339 Crankshaft Position Sensor "A" Circuit In-
termittent
CIRCUIT DESCRIPTION
The crankshaft position sensor system consists of a crankshaft position sensor plate and a pick-up coil.
The sensor plate has 32 teeth and is installed on the crankshaft. The pick-up coil is made of an iron core
and magnet. The sensor plate rotates and as each tooth passes through the pick-up coil, a pulse signal is
created. The pick-up coil generates 32 signals for each engine revolution. Based on these signals, the ECM
calculates the crankshaft position and engine RPM. Using these calculations, the fuel injection time and igni-
tion timing are controlled.
DTC No. DTC Detecting Condition Trouble Area
No crankshaft position sensor signal to ECM during crank- S Open or short in crankshaft position sensor circuit
ing (2 trip detection logic) S Crankshaft position sensor
osition
P0335
No crankshaft position sensor signal to ECM with engine S Signal plate
speed 450 rpm or more (1 trip detection logic) S ECM
In condition (a), (b) and (c), when no crankshaft position
sensor (NE) signal is input for 0.05 sec. or more. :
S Open or short in crankshaft position sensor circuit
(1 trip detection logic)
S Crankshaft position sensor
P0339 (c) Engine revolution 1,000 rpm or more
S Signal plate
(d) STA signal is OFF
S ECM
(e) 3 sec. or more has lapsed after STA signal is switched
from ON to OFF.
Reference: Inspection using the oscilloscope.
G2 and NE Signal Waveforms
The correct waveform is as shown in the illustration.
5V
/Division Tester Connection Specified Condition
G2
VV1+ (E5-25) - VV1- (E5-24)
VV2+ (E5-18) - VV2- (E5-28) Correct waveform is as shown
NE+ (E5-21) - NE- (E5-20)
NE
20 msec./Division (Idling)
5V
/Division
G2
NE
FI7059
FI7060 10 msec./Division (Idling) A00069
DI-633
DIAGNOSTICS - ENGINE (2UZ-FE)
MONITOR DESCRIPTION
If there are no signals from the crankshaft sensor even though the engine is revolving, the ECM interprets
this as a malfunction of the sensor.
MONITOR STRATEGY
Crankshaft position sensor range check or ratio-
Related DTCs P0335
nality
Main sensors/components Crankshaft position sensor
Required sensors/components
R i d / t
Related sensors/components Engine speed sensor
Frequency of operation Continuous
Case 1: 0.016 sec.
Duration
Case 2: 3 times
MIL operation Immediate
Sequence of operation None
TYPICAL ENABLING CONDITIONS
Specification
Item
It
Minimum Maximum
The monitor will run whenever this DTC is
See page DI-437
not present
Case 1:
Engine speed 450 rpm -
Starter OFF
Time after starter ON to OFF 3 sec. -
Case 2:
Time after starter OFF to ON 0.3 sec. -
Number of camshaft position sensor sig-
6 -
nal pulse
Battery voltage 7V -
Ignition switch ON
Camshaft position sensor circuit fail Not detected
TYPICAL MALFUNCTION THRESHOLDS
Detection Criteria Threshold
Case 1:
Engine speed signal No signal
Case 2:
Number of crankshaft position sensor signal pulse 132 or less, or 174 or more
DI-634
DIAGNOSTICS - ENGINE (2UZ-FE)
WIRING DIAGRAM
C1
Camshaft Position Sensor ECM
23
3 G-B
VC E7 VC
19 G2+
2 Y
G2 E5
(*1)
29
1 L
G- E5 G2-
J64 J/C
E E
E 21
1 G NE+
E5
(*1) BR
20
2 L
E5
NE-
1
C2 E2
E5 E1
Crankshaft Position Sensor
*1:Shielded BR BR
*2: Double Cab
*3: Access Cab, Standard Cab EC EY (*2)
EW (*3)
A23586
INSPECTION PROCEDURE
HINT:
S Read freeze frame data using the hand-held tester. Freeze frame records the engine conditions when
a 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 lean or rich, etc. at the time
of the malfunction.
S READ VALUE ON HAND-HELD TESTER
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine and push the hand-held tester tool main switch ON.
(c) When using hand-held tester, enter the following menu: "DIAGNOSIS / ENHANCED OBD II / DATA
LIST / ALL / ENGINE SPD".
S The engine speed can be confirmed in DATA LIST using the hand-held tester. If there are no NE sig-
nals from the crankshaft position sensor despite the engine revolving, the engine speed will be indi-
cated as zero. If voltage output of the crankshaft position sensor is insufficient, the engine speed will
be indicated as lower RPM (than the actual RPM).
DI-635
DIAGNOSTICS - ENGINE (2UZ-FE)
1 Check resistance of crankshaft position sensor.
Component Side PREPARATION:
Disconnect the C2 crankshaft position sensor connector.
CHECK:
C2 Measure the resistance between terminals 1 and 2.
OK:
Standard:
Tester Connection Specified Condition
1-2 985 to 1,600 at cold
Crankshaft Position Sensor
A21026
1-2 1,265 to 1,890 at hot
NOTICE:
" Cold" and "Hot" shown above mean the temperature of
the coils themselves. "Cold" is form -10◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo