Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the HVAC Blower Controls System Check? | -- | Go to Step 3 | |
2 |
Did the test lamp light? | -- | Go to Step 3 | Go to Step 4 |
3 | Use the test lamp in order to backprobe the heater-A/C and rear defogger control assembly connector C3 between terminal A and ground. Did the test lamp light? | -- | Go to Step 5 | Go to Step 6 |
4 | Repair the open in CKT 41 between the fuse block and the heater-A/C and rear defogger control assembly. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
5 |
Did the test lamp light? | -- | Go to Step 7 | Go to Step 8 |
6 | Replace the heater-A/C rear defogger control assembly. Did you complete the repair? | -- | -- | |
7 | Connect the test lamp between terminal 85 and terminal 86 of the blower motor relay harness connector. Did the test lamp light? | -- | Go to Step 9 | Go to Step 10 |
8 | Repair the open in CKT 64 between the heater-A/C rear defogger control asembly and the blower motor relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
9 | Connect the test lamp between terminal 30 and terminal 86 of the blower motor relay harness connector. Did the test lamp light? | -- | Go to Step 11 | Go to Step 12 |
10 | Repair the open in CKT 150 between the blower motor relay the ground G112. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
11 | Connect a fused jumper between terminal 30 and terminal 87 of the blower motor relay harness connector. Does the blower motor operate? | -- | Go to Step 13 | Go to Step 14 |
12 | Repair the open in CKT 540 between the engine compartment fuse/relay center and the blower motor relay. Refer to Wiring Repairs in Wiring Systems Did you complete the repair? | -- | -- | |
13 | Replace the blower motor relay Did you complete the repair? | -- | -- | |
14 |
Did the test lamp light? | -- | Go to Step 15 | Go to Step 16 |
15 | Connect the test lamp between terminal A and terminal B of the blower motor harness connector. Did the test lamp light? | -- | Go to Step 17 | Go to Step 18 |
16 | Repair the open in CKT 65 between the blower motor relay and the blower motor. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
17 | Replace the blower motor. Did you complete the repair? | -- | -- | |
18 |
Is the resistance within the specified range? | 0-2 ohms | Go to Step 20 | Go to Step 21 |
19 | Repair the open in CKT 150 between the heater-A/C and rear defogger control assembly and ground. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
20 |
Is the resistance within the specified range? | 0-2 ohms | Go to Step 6 | Go to Step 19 |
21 | Repair the open in CKT 52 between the blower motor and splice 124. Did you complete the repair? | -- | -- |
