HVAC Compressor Clutch Does Not Disengage. Chevrolet Metro 1998

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the HVAC Compressor Controls System Check performed? | -- | Go to Step 2 | Go to HVAC Compressor Controls System Check

2

1. Start the engine.
2. Disconnect the air conditioning (A/C) switch connector.

Does the A/C compressor clutch engage?

--

Go to Step 4

Go to Step 3

3 | Replace the A/C switch. Refer to Air Conditioning (A/C) Cooling Fan Switch Replacement . Is the repair complete? | -- | Go to HVAC Compressor Controls System Check | --

4

1. Disconnect the A/C compressor control module connector.
2. Connect a test lamp from the A/C switch connector terminal 2 to ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

5 | Repair the short to voltage in the BLU/WHT wire between the A/C switch and the A/C compressor control module. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC Compressor Controls System Check | --

6

1. Remove the relay box cover.
2. Remove the A/C compressor clutch relay. Refer to Compressor Relay Replacement .
3. Remove the A/C condenser fan relay. Refer to Condenser Fan Relay Replacement .

Does the compressor clutch engage?

--

Go to Step 7

Go to Step 8

7

Repair the short to voltage in the BLK/RED wire between the following components:

• | The A/C compressor clutch relay

• | The A/C condenser fan relay

• | S123

Is the repair complete?

--

Go to HVAC Compressor Controls System Check

--

8 | Reconnect the A/C condenser fan relay. The A/C compressor clutch should not engage. Does the A/C compressor clutch engage? | -- | Go to Step 9 | Go to Step 10
9 | Replace the A/C condenser fan relay. Refer to Condenser Fan Relay Replacement . Is the repair complete? | -- | Go to HVAC Compressor Controls System Check | --
10 | Test for a short to ground in the PNK wire between the A/C compressor clutch relay terminal 2 and the A/C compressor control module terminal 7. Is the resistance less than the specified value? | -- | Go to Step 11 | Go to Step 12
11 | Repair the short to ground in the PNK wire between the A/C compressor clutch relay and the A/C compressor control module. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC Compressor Controls System Check | --
12 | Reconnect the A/C compressor clutch relay. The A/C compressor clutch should not engage. Does the A/C compressor clutch engage? | -- | Go to Step 13 | Go to Step 14
13 | Replace the A/C compressor clutch relay. Refer to Compressor Relay Replacement . Is the repair complete? | -- | Go to HVAC Compressor Controls System Check | --
14 | Replace the A/C compressor control module. Refer to Air Conditioning (A/C) Compressor Control Module Replacement . Is the repair complete? | -- | Go to HVAC Compressor Controls System Check | --