A/C Mode Selector Test

NOTE: This test is to be performed with the Ignition Switch in the RUN position.

Backprobe the connector to the A/C Control Head and measure the voltage to ground with the connector still on the Head.

A/C Control Head Voltage Test:

^ If Battery voltage is not present at E, check the BRN wire (50) back to the fuse.
^ If Battery voltage is at E, but not at B, install a new A/C Control Head.