Ignition Coil: Testing and Inspection

VOLTAGE SUPPLY CHECK

Ignition Coil Voltage Supply Check:

1. Disconnect ignition coil connector.
2. With ignition switch "ON," check for approximately 12V at connector positive terminal.
3. If there is no voltage, check main fuse, ignition switch. Repair the problem as required.

PRIMARY RESISTANCE CHECK

Coil Primary Resistance Check:

Check primary resistance across coil terminals as indicated on image. If not within specification, replace coil.

0.78 - 0.94 ohms

SECONDARY RESISTANCE CHECK

Coil Secondary Resistance Check:

Check secondary resistance as indicated on image. If not within specification, replace coil.

11.2 - 15.2K ohms

COIL CASE RESISTANCE CHECK

Coil Case Resistance Check:

Check insulation resistance between primary terminal and coil case as indicated on image. Replace coil if it does not test as specified.

10M ohms min.