8B Spark Control Wire Between Logic & Power Modules

*** UPDATED BY TSB #18-61-86

1. With logic module white electrical connector disconnected, place ignition switch in the Off position.
2. Disconnect jumper wire from terminal No. 6 of electrical connector.
3. Disconnect 12 terminal electrical connector from power module.
4. Connect an ohmmeter between terminal No. 6 of logic module white electrical connector and terminal No. 10 of the power module 12 terminal electrical connector.
5. If ohmmeter indicates continuity, replace the power module.

CAUTION: Before replacing the power module check the terminal in cavity No. 10 of the 12 way connector to make sure it is not spread apart causing a poor connection. Also make sure the wire of cavity No. 10 is not shorted to ground.

6. If ohmmeter does not indicate continuity, check and repair wiring for open circuit.