1A-61 Engine General Information and Diagnosis:
1 5) If OK, then check the continuity between each terminal
and ground.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Injector continuity
∞ Ω (Infinity)
(Terminal – Ground)
Are the resistance and continuity OK?
Go to Step 2. Replace the injector
with a new one. Refer to
“Throttle Body
Disassembly and
Assembly in Section 1D
(Page 1D-10)”.
2 1) Turn the ignition switch ON.
2) Measure the injector voltage between Y/R wire and
ground.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage ( )
Injector voltage
Battery voltage
((+) terminal: Y/R – (–) terminal: Ground)
Is the voltage OK?
• Gr/W or Y/R wire
open or shorted to
ground, or poor “2” or
“20” connection.
• If wire and
connection are OK,
intermittent trouble or
faulty ECM.
• Recheck each
terminal and poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again.
Open circuit in the Y/R
wire.
Step Action Yes No
(A)
I831G1110089-01
(A)
V
I831G1110061-02
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