Step | Action | Yes | No | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |||||||||
2 | Check the blower. Does the blower run at any speed? | Go to Step 14 | Go to Step 3 | ||||||||
3 |
Is this voltage present? | Go to Step 4 | Go to Step 5 | ||||||||
4 | Replace the blower motor. Is the repair complete? | System OK | -- | ||||||||
5 | Check fuse F19 in the passenger compartment fuse block. Is the fuse blown? | Go to Step 6 | Go to Step 7 | ||||||||
6 |
Is the repair complete? | System OK | -- | ||||||||
7 |
Is ground OK? | Go to Step 9 | Go to Step 8 | ||||||||
8 | Repair the blower motor ground. Is the repair complete? | System OK | -- | ||||||||
9 | Check the motor connector with a 12-volt test light. Does the test light come on? | Go to Step 10 | Go to Step 11 | ||||||||
10 | Repair the open in the feed wire from the resistor block to the blower motor. Is the repair complete? | System OK | -- | ||||||||
11 | Use the 12-volt test light to check the power feed terminal on the blower speed switch. Does the light come on? | Go to Step 12 | Go to Step 13 | ||||||||
12 | Replace the blower speed switch. Is the repair complete? | System OK | -- | ||||||||
13 | Repair the open in the power wire from the blower speed switch to the fuse panel. Is the repair complete? | System OK | Go to Step 14 | ||||||||
14 | Check the blower operation at speed 4. Does the blower fail to operate at speed 4? | Go to Step 15 | Go to Step 21 | ||||||||
15 | Check fuse EF8 in the engine fuse compartment. Is the fuse blown? | Go to Step 16 | Go to Step 17 | ||||||||
16 |
Is the repair complete? | System OK | -- | ||||||||
17 |
Is this voltage present? | Go to Step 18 | Go to Step 19 | ||||||||
18 | Replace the blower speed switch. Is the repair complete? | System OK | -- | ||||||||
19 |
Is the repair complete? | System OK | Go to Step 20 | ||||||||
20 | Replace the blower HI relay. Is the repair complete? | System OK | -- | ||||||||
21 |
Does the test light illuminate on all terminals? | Go to Step 23 | Go to Step 22 | ||||||||
22 | Replace the resistor block. Is the repair complete? | System OK | -- | ||||||||
23 |
Does the lamp light on all 3 wires? | Go to Step 25 | Go to Step 24 | ||||||||
24 | Replace the blower speed switch. Is the repair complete? | System OK | -- | ||||||||
25 | Repair the open in the affected wire. Is the repair complete? | System OK | -- |