Ignition Coil: Testing and Inspection

Using accurate tester, inspect the following items, and replace if defective.
1. Primary resistance
2. Secondary coil resistance

CAUTION: If the resistance is extremely low, this indicates the presence of a short-circuit.

Specified resistance:

[Primary side]
Between terminal No.1 and No.2
Between terminal No. 2 and No.3
0.73 Ohm ± 10%

[Secondary side]
Between (1) and (2)
Between (3) and (4)
12.8 kOhm ± 15%




3. Insulation between primary terminal and case: 10 MOhm or more.