ENGINE (J05E)/TROUBLESHOOTING
2–364
1.
Connect the signal check harness to the engine ECU.
2.
Connect the engine speed main sensor connector.
3.
Start the engine.
4.
Use the oscilloscope to measure the voltage between the termi-
nals of the engine ECU (signal check harness).
NO
YES
7
Check the engine speed main sensor signal
D
E52
E72
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Measurement
conditions
Tester
connections
Standard values
Engine idling
Engine ECU (sig-
nal check har-
ness)
NE+ (E52)
–
NE- (E72)
56 pulse
1 rotation
56 peaks (pulse)
No pulse (No gear tooth)
0V
SHTS021270300328
Do the measurements meet the standard value?
Go to step 8.
Replace the engine speed main sensor.
Perform "After-inspection work" of INFOR-
MATION section.