A00167
P22894
P24664
−
DIAGNOSTICS
ENGINE
DI
−
67
1996 LAND CRUISER (RM451U)
DTC
P0385
Crankshaft Position Sensor ”B” Circuit
Malfunction
CIRCUIT DESCRIPTION
The crankshaft position sensor (NE2 signal) consists of a signal plate and a pick up coil. The NE2 signal plate
has 34 teeth and is mounted on the crankshaft. When the crankshaft rotates, the protrusion on the signal
plate and the air gap on the pick up coil change, causing fluctuations in the magnetic field and generating
an electromotive force in the pick up coil. The NE2 signal sensor generates 34 signals for every engine revo-
lution. The ECM detects the standard crankshaft angle based on G1, G2 signals detects the actual crank-
shaft angle and the engine speed by NE signals, and detects misfire by NE2 signals.
DTC No.
DTC Detecting Condition
Trouble Area
P0385
No crankshaft position sensor signal (NE 2 signal) to ECM
during cranking. (2 trip detection logic)
S
Open or short in crankshaft position sensor for NE2 signals.
S
Crankshaft position sensor for NE2 signal.
S
ECM
No crankshaft position sensor signal (NE 2 signal) to ECM with
engine speed 550 rpm or more. (2trip detection logic)
WIRING DIAGRAM
Refer to DTC 0335 (Crankshaft Position Sensor ”A” Circuit Malfunction) on page
DI
−
62
for WIRING DIA-
GRAM.
INSPECTION PROCEDURE
1
Check resistance of crankshaft position sensor for NE2 signal.
PREPARATION:
Disconnect crankshaft position sensor connector.
CHECK:
Measure resistance between terminals 1 and 2 of crankshaft
position sensor connector.
OK:
Resistance
Cold
1630
−
2740
Ω
Hot
2065
−
3225
Ω
”Cold” is from
−
10
°
C (14
°F) to 50°C (122°F) of engine coolant
temperature and "Hot" is from 50°C (122°F) to 100°C (212°F).
Reference: INSPECTION USING OSCILLOSCOPE
Refer to page
DI
−
62
for Reference INSPECTION USING OS-
CILLOSCOPE.
NG
Replace crankshaft position sensor.
OK
DI5PJ
−
02
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