Engine General Information and Diagnosis: 1A-50
2 4) Check the continuity between the B/Bl wire and ground.
If the sound is not heard from the tester, the circuit
condition is OK.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Continuity test ( )
5) Connect the ECT sensor coupler.
6) Remove the regulator/rectifier. Refer to “Regulator /
Rectifier Inspection in Section 1J (Page 1J-8)”.
7) Insert the needle pointed probes to the lead wire coupler.
8) Turn the ignition switch ON.
9) Measure the output voltage between the B/Bl wire and
ground.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Voltage ( )
ECT sensor output voltage
0.15 – 4.85 V
((+) terminal: B/Bl – (–) terminal: Ground)
Are the continuity and voltage OK?
Go to Step 3. • B/Bl wire shorted to
the ground.
• If wire is OK, go to
Step 3.
Step Action Yes No
(A)
I718H1110054-03
(A)
(B)
I718H1110177-05
To Next Page
Loading...
