Blower Motor Inoperative Med-2. Chevrolet PJJ 2000

For 1990-2009 cars

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

1

1. Turn the mode selector to the ON position and the blower selector to the medium low position.
2. Test the switch output medium-1 circuit at the blower resistor for continuity to ground. Refer to Circuit Testing in Wiring Systems.

Is ground present?

--

Go to Step 2

Go to Step 3

2 | Replace the blower resistor. Refer to in Blower Motor Resistor Replacement . Is the repair complete? | -- | System OK | --
3 | Test the switch output medium-1 circuit at the hvac control assembly for continuity to ground. Refer to Circuit Testing in Wiring Systems. Is ground present? | -- | Go to Step 4 | Go to Step 5
4 | Repair open in the switch output medium-1 circuit. Refer to Circuit Testing in Wiring Systems. Is the repair complete? | -- | System OK | --
5 | Test the ground circuit at the hvac control assembly for continuity to ground. Refer to Circuit Testing in Wiring Systems. Is ground present? | -- | Go to Step 6 | Go to Step 7
6 | Replace the hvac control assembly. Refer to Control Assembly Replacement . Is the repair complete? | -- | System OK | --
7 | Repair open in the ground circuit. Refer to Circuit Testing in Wiring Systems. Is the repair complete? | -- | System OK | --