Blower Motor High Speed Inoperative. Chevrolet PJJ 2000

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---

1

1. Turn the ignition switch to ON.
2. Turn the mode selector to ON.
3. Turn the blower switch to HIGH.

Test the blower switch output-high circuit at the HVAC control assembly for continuity to ground. Refer to Circuit Testing in Wiring Systems.

Is ground present?

--

Go to Step 2

Go to Step 3

2 | Repair open in the blower switch output-high circuit. Refer to Wiring Repairs in Wiring Systems | -- | System OK | --
3 | Replace the HVAC control assembly. Refer to Control Assembly Replacement . Is the repair complete? | -- | System OK | --