Unplug resistor and test as follows.

First check all fuses.

Unplug resistor, test plug as follows, should have B+ at each wire as shown below.
1-5 = blower speeds.

1. Yellow for low.
2. Tan for medium low.
3. Light blue for medium
4. Purple for medium high.
5. Orange for high speed.

Heavy red wire far left
B+ full time, regardless of position of blower control switch.

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