Blower Motor Inoperative at Any Speed C60
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Inspect the fuse B1-B2 in the fuse block. Is the fuse open? | -- | Go to Step 2 | Go to Step 5 |
2 | Inspect for a short to ground in circuit 141. Is there a short to ground in circuit 141? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair the short to ground in circuit 141. Is the repair complete? | -- | -- | |
4 | Replace the HVAC control assembly. Refer to Control Assembly Replacement . Is the repair complete? | -- | -- | |
5 |
Does the test light illuminate? | -- | Go to Step 6 | Go to Step 12 |
6 |
Does the test light illuminate? | -- | Go to Step 7 | Go to Step 10 |
7 | Use a test light, backprobe between the blower motor connector terminal A and terminal B. Does the test light illuminate? | -- | Go to Step 8 | Go to Step 9 |
8 | Replace the blower motor. Refer to Blower Motor and Fan Replacement in Heating, Ventilation, and Air Conditioning. Is the repair complete? | -- | -- | |
9 |
Does the test light illuminate? | -- | Go to Step 10 | Go to Step 11 |
10 | Replace the blower motor resistor. Refer to Blower Motor Resistor Replacement . Is the repair complete? | -- | -- | |
11 | Repair the poor connection or an open in circuit 150. Is the repair complete? | -- | -- | |
12 | Repair the poor connection or an open in circuit 141. Is the repair complete? | -- | -- |
Blower Motor Inoperative at Any Speed CJ4 - Front
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Inspect the fuse E1-E2. Is the fuse open? | -- | Go to Step 2 | Go to Step 3 |
2 | Repair a short to ground in circuit 640. Is the repair complete? | -- | -- | |
3 | Inspect the fuse B3-B4. Is the fuse open? | -- | Go to Step 4 | Go to Step 5 |
4 | Repair a short to ground in circuit 41. Is the repair complete? | -- | -- | |
5 | Inspect the fuse K1-K2. Is the fuse open? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair a short to ground in circuit 40. Is the repair complete? | -- | -- | |
7 | Verify that ground G200 is clean and tight. Is ground G200 clean and tight? | -- | Go to Step 9 | Go to Step 8 |
8 | Clean and tighten G 200. Is the repair complete? | -- | -- | |
9 |
Does the test lamp light? | -- | Go to Step 10 | Go to Step 11 |
10 | Replace the blower motor. Refer to Blower Motor and Fan Replacement in Heating, Ventilation and Air Conditioning. Is the repair complete? | -- | -- | |
11 |
Does the voltage vary between the specified values? | 0.5-7V | Go to Step 12 | Go to Step 17 |
12 | Use a test light in order to backprobe between the blower motor control module harness connector terminal A and terminal B. Does the test light illuminate? | -- | Go to Step 13 | Go to Step 14 |
13 | Replace the blower motor control module. Refer to Blower Motor Control Module Replacement . Is the repair complete? | -- | -- | |
14 | Use a test light in order to backprobe between the blower motor control module harness connector terminal B and ground. Does the test light illuminate? | -- | Go to Step 15 | Go to Step 16 |
15 | Repair a poor connection or an open in circuit 150. Is the repair complete? | -- | -- | |
16 | Locate and repair a poor connection or an open in circuit 40. Is the repair complete? | -- | -- | |
17 |
Does the test light illuminate? | -- | Go to Step 20 | |
18 |
Is the test light on? | -- | Go to Step 23 | Go to Step 19 |
19 | Repair a poor connection or an open in circuit 41 between S233 and the HVAC control assembly harness connector terminal C5. Is the repair complete? | -- | -- | |
20 | Using a test light, backprobe between the HVAC control assembly harness connector terminal C12 and ground. Does the test lamp light? | -- | Go to Step 21 | Go to Step 22 |
21 | Repair a poor connection or an open in circuit 1450 between HVAC control assembly harness connector terminal C1 and G200. Is the repair complete? | -- | -- | |
22 | Repair a poor connection or an open in circuit 640 between S202 and HVAC control assembly harness connector terminal C12. Is the repair complete? | -- | -- | |
23 |
Is there continuity in the circuit? | -- | Go to Step 25 | Go to Step 24 |
24 | Repair a poor connection or an open in circuit 754. Is the repair complete? | -- | -- | |
25 | Inspect for a short to B+ in circuit 754. Is there a short to B+ on the circuit ? | -- | Go to Step 26 | Go to Step 27 |
26 | Repair the short to B+ on circuit 754. Is the repair complete? | -- | -- | |
27 | Replace the HVAC control assembly. Refer to Control Assembly Replacement . Is the repair complete? | -- | -- |
Blower Motor Inoperative at Any Speed CJ4 - Rear
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 |
Does the test light illuminate? | -- | Go to Step 2 | Go to Step 3 |
2 | Using a test light, backprobe between the rear HVAC control assembly harness connector terminal C and terminal K. Does the test light illuminate? | -- | Go to Step 5 | Go to Step 4 |
3 | Repair a poor connection or an open in circuit 41 between S233 and the rear HVAC control assembly harness connector terminal C. Is the repair complete? | -- | -- | |
4 | Repair a poor connection or an open in circuit 1450 between the rear HVAC control assembly harness connector terminal K and G200. Is the repair complete? | -- | -- | |
5 | Using a DMM, test for a poor connection or an open in circuit 2211. Is there a poor connection or an open in the circuit? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair a poor connection or an open in circuit 2211. Is the repair complete? | -- | -- | |
7 | Replace the rear HVAC control assembly. Refer to Control Assembly Replacement . Is the repair complete? | -- | -- |
