K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Figure 1
7.
Make the following connections (see Figure 1)
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Red wire to terminal E of high blower motor relay connector and to the junction block connection located on the cowl
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Black wire to blower motor case mounting bolt for chassis ground. Choose the nearest bolt and scrape lightly around the bolt hole to assure a
good ground.
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Remaining end of black wire to terminal A of high blower motor relay connector
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Brown wire to terminal D high blower relay connector and terminal 52 of resistor block.
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Remaining orange wire (ignition lead) to terminal C of high blower relay connector.
8.
Firmly install the high blower connector to the high blower motor relay.
