FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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13H Check System Power Circuit For 8 Volt Output


1. Turn ignition switch Off, then disconnect 12-way [1][2]power module electrical connector.

12-way Power Module Pin Connector:





2. Connect a voltmeter between pin 12 of [1][2]power module and ground, then turn ignition switch to Run position.
3. If voltmeter reads seven volts or more, locate and repair open or short in wire between cavity 12 and logic module.
NOTE: Check the terminal in cavity No. 12 to make sure it is not spread apart causing a poor connection.
4. If voltmeter indicates no voltage, proceed to Test 13 step I.