ELECTRICAL COMPONENTS
8-161
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a. Disconnect the relay unit coupler from the
wire harness.
b. Connect the pocket tester (Ω × 1) to the relay
unit terminal as shown.
c. Check the relay unit (diode) for continuity.
d. Check the relay unit (diode) for no continuity.
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EAS28070
CHECKING THE SPARK PLUG CAPS
The following procedure applies to all of the
spark plug caps.
1. Check:
• Spark plug cap resistance
Out of specification → Replace.
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a. Remove the spark plug cap from the spark
plug lead.
b. Connect the pocket tester (Ω × 1k) to the
spark plug cap as shown.
c. Measure the spark plug cap resistance.
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EAS28100
CHECKING THE IGNITION COILS
The following procedure applies to both of the ig-
nition coils.
1. Check:
• Primary coil resistance
Out of specification → Replace.
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a. Disconnect the ignition coil connectors from
the ignition coil terminals.
b. Connect the pocket tester (Ω × 1) to the igni-
tion coil as shown.
Continuity
Positive tester probe → sky blue
“1”
Negative tester probe →
black/yellow “2”
No continuity
Positive tester probe →
black/yellow “2”
Negative tester probe → sky
blue “1”
Continuity
Positive tester probe → sky blue
“1”
Negative tester probe →
black/red “3”
No continuity
Positive tester probe →
black/red “3”
Negative tester probe → sky
blue “1”
Continuity
Positive tester probe → sky blue
“1”
Negative tester probe → sky
blue/white “4”
No continuity
Positive tester probe → sky
blue/white “4”
Negative tester probe → sky
blue “1”
Continuity
Positive tester probe →
blue/green “5”
Negative tester probe →
black/red “3”
No continuity
Positive tester probe →
black/red “3”
Negative tester probe →
blue/green “5”
Resistance
10.0 kΩ
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Primary coil resistance
1.53–2.07 Ω at 20 °C (68 °F)
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