1A-103 Engine General Information and Diagnosis:
3
1) Connect the HO2 sensor coupler and ECM coupler.
Refer to “ECM Removal and Installation in Section 1C
(Page 1C-1)”.
2) Insert the needle pointed probes to the lead wire coupler.
3) Turn the ignition switch ON and measure the heater
voltage between the W/B wire and ground.
If the tester voltage indicates the battery voltage, it is
good condition.
NOTE
Battery voltage can be detected only before
starting the engine.
Special tool
(A): 09900–25008 (Multi circuit tester set)
(B): 09900–25009 (Needle pointed probe set)
Tester knob indication
Voltage (
)
Heater voltage
((+) terminal: W/B – (–) terminal: Ground)
Is the voltage OK?
Replace the ECM with a
new one. Refer to “ECM
Removal and
Installation in Section
1C (Page 1C-1)”.
Open circuit in the O/W
wire.
Step
Action
Yes
No
(A)
(B)
I944H1110091-02
Содержание SFV650
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