Diagnostic Procedure
Ignition coil resistance Inspection
1.

Measure primary coil resistance and secondary coil resistance after disconnecting ignition coil connector.

■ Specification :

Primary coil resistance

0.62 ± 10%(20℃)

Secondary coil resistance

7.0 ㏀ ± 15% (20℃)

2.

Is the primary (secondary) resistance of the ignition coil normal?

▶ Go to "Primary ignition coil waveform inspection " procedure as below.

▶ Substitute with a known-good ignition coil and check for proper operation. If the problem is corrected, Replace the ignition coil.

Ignition coil waveform Inspection
3.

Select oscilloscope function on the GDS and Connect channel A of the VMI to ignition coil connecter.

4.

Measure the primary ignition coil signal waveform with IG key "START".

■ Specification :

5.

Is the 1st ignition coil signal waveform normal?

▶ Go to "Spark plug inspection" procedure.

▶ Go to "Ignition coil circuit inspection" procedure.

▶ Substitute with a known-good ignition coil and check for proper operation. If the problem is corrected, Replace the ignition coil.

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