For 1990-2009 cars

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

1. Turn the ignition switch to the OFF position.
2. Disconnect the blower motor relay.
3. Connect a test light at the blower motor relay connector terminal A1 and ground.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3 | Repair a short to B+ in circuit 52. Is the repair complete? | -- | Go to Step 9 | --
4 | Connect a test light at the blower motor relay connector terminal B2 and ground. Does the test light illuminate? | -- | Go to Step 5 | Go to Step 6
5 | Repair a short to B+ in circuit 101. Is the repair complete? | -- | Go to Step 9 | --
6 | Connect a test light at the blower motor relay connector terminal C1 and ground. Does the test light illuminate? | -- | Go to Step 7 | Go to Step 8
7 | Repair a short to B+ in circuit 65. Is the repair complete? | -- | Go to Step 9 | --
8 | Replace the blower motor relay. Refer to Blower Motor Relay Replacement Is the repair complete? | -- | Go to Step 9 | --
9 |

1. Turn the ignition switch to the OFF position.
2. Reconnect all connectors /components removed.

Have all the repairs been made?

--

Go to HVAC Blower Controls System Check

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