Test E: Blower Relay Test

Blower Relay Test.:

1. Remove the connector from the Blower Relay and measure the voltage to ground at each wire of the connector. Do this with the Ignition Switch in RUN, the Blower Switch in HI, and the A/C Function Selector in VENT.

^ If the voltage at a wire is not correct, check the circuit at that wire.

Blower Relay Test Part 2.:

2. With the connector still removed from the Blower Relay, measure the resistance to ground at the Blower Relay connector terminals. First disconnect the negative Battery terminal.


^ If the voltages and resistances at the Blower Relay connector are correct, but the blower does not operate, replace the relay.