1A-96 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)
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-11)”.
2 1) Turn the ignition switch ON.
2) Measure the injector voltage between the Y/R wire and
ground.
NOTE
Injector voltage can be detected only for 3
seconds after ignition switch is turned ON.
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?
• Lg wire open or
shorted to ground, or
poor “59” connection
(#1 cylinder side).
• Lg/W wire open or
shorted to ground, or
poor “58” connection
(#2 cylinder side).
• Lg/G wire open or
shorted to ground, or
poor “57” connection
(#3 cylinder side).
• Lg/Bl wire open or
shorted to ground, or
poor “56” connection
(#4 cylinder side).
• If wire and
connection are OK,
intermittent trouble or
faulty ECM.
• Recheck each
terminal and wire
harness for open
circuit and poor
connection.
• Replace the ECM
with a known good
one, and inspect it
again. Refer to “ECM
Removal and
Installation in Section
1C (Page 1C-1)”.
Open circuit in the Y/R
wire.
Step Action Yes No
(A)
I837H1110077-01
(A)
I837H1110078-02
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