Test 12, Ballast Resistor

Ballast resistor test connections:

Procedure
1. Disconnect and inspect module two wire connector and ignition coil connector, Fig. 1.
2. Using a suitable ohmmeter, measure resistance between coil connector Batt. terminal and wiring harness connector which mates with module red wire, Fig. 1.
3. If reading is 0.8---1.6 ohms, circuit is satisfactory. If reading is less than 0.8 ohms or more than 1.6 ohms, replace ballast resistor.