Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 |
Did the test lamp light? | -- | Go to Step 3 | Go to Step 2 |
2 | Locate and repair open CKT 196 or CKT 371 (BRN) between IP fuse block and relay center 2. Is the repair complete? | -- | System OK | -- |
3 | Backprobe relay center 2 with a test lamp from blower relay terminal 30 to ground. Did the test lamp light? | -- | Go to Step 5 | Go to Step 4 |
4 | Locate and repair open CKT 190 (LT GRN) between IP fuse block and relay center 2. Is the repair complete? | -- | System OK | -- |
5 | Backprobe relay center 2 with a test lamp from blower relay terminal 86 to B+. Did the test lamp light? | -- | Go to Step 7 | Go to Step 6 |
6 | Locate and repair open CKT 199 (BLK) between relay center 2 and G105. Is the repair complete? | -- | System OK | -- |
7 | Backprobe relay center 2 with a test lamp from blower relay terminal 87 to ground. Did the test lamp light? | -- | Go to Step 9 | Go to Step 8 |
8 | Replace the blower relay. Is the repair complete? | -- | System OK | -- |
9 | Backprobe relay center 2 with a test lamp from A/C condensor fan relay terminal 85 to ground. Did the test lamp light? | -- | Go to Step 11 | Go to Step 10 |
10 | Locate and repair open in CKT 204 (LT GRN) between blower relay and A/C condensor fan relay. Is the repair complete? | -- | System OK | -- |
11 | Backprobe relay center 2 with a test lamp from A/C condensor fan relay terminal 30 to ground. Did the test lamp light? | -- | Go to Step 13 | Go to Step 12 |
12 | Locate and repair open CKT 201 (GRN/RED) between I/P fuse block and relay center 2. Is the repair complete? | -- | System OK | -- |
13 | Backprobe relay center 2 with a test lamp from A/C condensor fan relay terminal 86 to B+. Did the test lamp light? | -- | Go to Step 18 | Go to Step 14 |
14 | Backprobe HVAC controller with a test lamp from connector C2 terminal 3 to B+. Did the test lamp light? | -- | Go to Step 16 | Go to Step 15 |
15 | Replace the HVAC controller . Refer to Control Assembly Replacement . Is the repair complete? | -- | System OK | -- |
16 | Backprobe the A/C evaporator temperature sensor with a test lamp from terminal C to B+. Did the test lamp light? | -- | Go to Step 17 | Go to Step 18 |
17 | Locate and repair open CKT 603, CKT 206, CKT 216 or CKT 177 (GRN) between A/C pressure cutoff switch and the HVAC controller. Is the repair complete? | -- | System OK | -- |
18 | Backprobe A/C evaporator temperature sensor with a test lamp from cavity B to B+. Did the test lamp light? | -- | Go to Step 20 | Go to Step 19 |
19 | Replace the A/C evaporator temperature sensor. Refer to Air Conditioning (A/C) Temperature Sensor Replacement Is the repair complete? | -- | System OK | -- |
20 | Backprobe relay center 2 with a test lamp from A/C condensor fan relay cavity 87 to ground. Did the test lamp light? | -- | Go to Step 22 | Go to Step 21 |
21 | Replace the A/C condensor fan relay. Is the repair complete? | -- | System OK | -- |
22 | Backprobe A/C condensor fan motor with a test lamp from cavity 6 to ground. Did the test lamp light? | -- | Go to Step 24 | Go to Step 23 |
23 | Locate and repair open CKT 202 or CKT 1727 (DK BLU/WHT) between relay center 2 and A/C condensor fan motor. Is the repair complete? | -- | System OK | -- |
24 | Backprobe A/C condensor fan motor with a test lamp from cavity 5 to B+. Did the test lamp light? | -- | Go to Step 25 | Go to Step 26 |
25 | Replace the A/C condensor fan motor. Is the repair complete? | -- | System OK | -- |
26 | Locate and repair open CKT 150 (BLK) between A/C condensor fan motor and G107. Is the repair complete? | -- | System OK | -- |
