ENGINE (J05E)/TROUBLESHOOTING
2–447
1.
Connect the signal check harness to the engine ECU.
2.
Connect the engine speed main sensor (crankshaft position sen-
sor) connector.
3.
Start the engine.
4.
Use the oscilloscope to measure the signal voltage between the
terminals in the engine ECU (signal check harness).
NO
YES
6
Check the engine speed main sensor (crankshaft position sensor) signal
D
E52
E72
SHTS021270300412
Measurement
conditions
Tester
connections
Standard values
With engine idling
Engine ECU (sig-
nal check har-
ness)
NE+ (E52)
–
NE- (E72)
Pulse 56
1 rotation
56 peaks (pulse)
No pulse (No gear tooth)
0V
SHTS021270300413
Do the measurements meet the standard value?
Go
to
step
7.
Replace the engine speed main sensor
(crankshaft position sensor).
Perform "After-inspection work" of INFOR-
MATION section.