Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Check the LOW BLOWER fuse in the fuse block. Is the LOW BLOWER fuse open? | -- | Go to Step 2 | Go to Step 5 |
2 | Check for a short to ground in circuit 141(BRN). Is there a short to ground in the circuit? | -- | Go to Step 3 | Go to Step 4 |
3 | Locate and repair the short to ground in circuit 141 (BRN). Is the repair complete? | -- | System OK | -- |
4 | Replace the heater-A/C control. Refer to Control Assembly Replacement in HVAC Systems with A/C - Manual. Is the repair complete? | -- | System OK | -- |
5 |
Does the test lamp light ? | -- | Go to Step 6 | Go to Step 12 |
6 |
Does the test lamp light? | -- | Go to Step 7 | Go to Step 10 |
7 | Us a test light to backprobe between the blower motor connector terminal A and terminal B. Does the test lamp light? | -- | Go to Step 8 | Go to Step 9 |
8 | Replace the blower motor. Refer to Blower Motor and Fan Replacement Is the repair complete? | -- | System OK | -- |
9 |
Does the test lamp light? | -- | Go to Step 10 | Go to Step 11 |
10 | Replace the blower motor resistor. Refer to Blower Motor Resistor Replacement in HVAC Systems . Is the repair complete? | -- | System OK | -- |
11 | Repair poor connector or open in circuit 150 (BLK) between the blower motor resistor connector C 1 terminal E and G 200. Is the repair complete? | -- | System OK | -- |
12 | Repair poor connection or open in circuit 141 (BRN). Is the repair complete? | -- | System OK | -- |
