Operation CHARM: Car repair manuals for everyone.

IGN13 - Check Ignition Coil Resistance



^ Disconnect the wire(s) from the ignition coil.

Coil Resistance Test:






^ Measure ignition coil resistance:

Primary: Positive to Negative 0.8-1.6 Ohms

Secondary: Positive to High Voltage 6k-30k Ohms

NOTE: Refer to image for Ohmmeter hookups.

^ Are the resistance readings within specifications?

YES -- Go to Computers and Control Systems / System Diagnosis / Diagnostic Charts (Pinpoint Tests) / IDM - Ignition Diagnostic Monitor.

NO -- Replace the distributor.