Step | Action | Value(s) | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
1 |
Does the defogger ON indicator turn on? | -- | Go to Step 2 | Go to Step 22 | ||||||
2 |
Do any defoggers turn on? | -- | Go to Step 3 | Go to Step 11 | ||||||
3 | Do all of the defoggers turn on? | -- | Go to Step 13 | Go to Step 4 | ||||||
4 | Does the rear window defogger turn on? | -- | Go to Step 5 | Go to Step 6 | ||||||
5 | Did either the LH or RH sideview mirror defogger turn on? | -- | Go to Step 30 | Go to Step 35 | ||||||
6 |
Does the test light illuminate? | -- | Go to Step 7 | Go to Step 8 | ||||||
7 | Repair or replace the rear defogger grid. Refer to Grid Line Repair . Is the repair complete? | -- | Go to Step 38 | -- | ||||||
8 |
Does the test light illuminate? | -- | Go to Step 9 | Go to Step 10 | ||||||
9 | Repair a poor connection or an open in circuit 450 (BLK) between the rear defogger grid connector C 2 terminal A and G401. Is the repair complete? | -- | Go to Step 38 | -- | ||||||
10 | Repair a poor connection or an open in circuit 293 (PPL) between S 268 and the rear defogger grid connector C 1 terminal A. Is the repair complete? | -- | Go to Step 38 | -- | ||||||
11 |
Does the test light illuminate? | -- | Go to Step 12 | Go to Step 17 | ||||||
12 | Use a test light to backprobe the rear window defogger relay harness connector between terminal C 2 (circuit 41) and ground. Does the test light illuminate? | -- | Go to Step 13 | Go to Step 16 | ||||||
13 |
Does the test light illuminate? | -- | Go to Step 14 | Go to Step 15 | ||||||
14 | Replace the heater-a/c control. Refer to Control Assembly Replacement for the manual HVAC system orRefer to Control Assembly Replacement for the Automatic HVAC system. Is the repair complete? | -- | Go to Step 38 | -- | ||||||
15 | Repair a poor connection or an open in circuit 193 (WHT). Is the repair complete? | -- | Go to Step 38 | -- | ||||||
16 | Repair a poor connection or an open in circuit 41 between S 233 and the rear window defogger relay harness connector terminal C 2. Is the repair complete? | -- | Go to Step 38 | -- | ||||||
17 |
Does the test light illuminate? | -- | Go to Step 18 | Go to Step 19 | ||||||
18 | Repair a poor connection or an open in circuit 293 (PPL) between the rear window defogger relay harness connector terminal A 2 and S 268. Is the repair complete? | -- | Go to Step 38 | -- | ||||||
19 | Use a test light to backprobe between B+ and the rear window defogger relay harness connector terminal C 1 (circuit 1040). Does the test light illuminate? | -- | Go to Step 20 | Go to Step 21 | ||||||
20 | Repair the short to ground in circuit 1040(ORN). Is the repair complete? | -- | Go to Step 38 | -- | ||||||
21 | Repair a poor connection or an open in circuit 1040 (ORN). Is the repair complete? | -- | Go to Step 38 | -- | ||||||
22 | Check the HVAC fuse in the fuse block. Is the HVAC fuse in the fuse block open? | -- | Go to Step 23 | Go to Step 24 | ||||||
23 | Locate and Repair the short to ground in circuit 41 (BRN). Is the repair complete? | -- | Go to Step 38 | -- | ||||||
24 |
Does the test light illuminate? | -- | Go to Step 25 | Go to Step 27 | ||||||
25 |
Does the test light illuminate? | -- | Go to Step 26 | Go to Step 14 | ||||||
26 | Repair a short to B+ in circuit 193 (WHT). Is the repair complete? | -- | Go to Step 38 | -- | ||||||
27 | Use a test light to backprobe between the following electrical components:
Does the test light illuminate? | -- | Go to Step 28 | Go to Step 29 | ||||||
28 | Repair a poor connection or an open in circuit 1450 (BLK) between the following electrical components:
Is the repair complete? | -- | Go to Step 38 | -- | ||||||
29 | Repair a poor connection or an open in circuit 41 (BRN) between the fuse block terminal B 4 and the following electrical components:
Is the repair complete? | -- | Go to Step 38 | -- | ||||||
30 |
Is the test light on? | -- | Go to Step 31 | Go to Step 32 | ||||||
31 | Replace the inoperative outside rearview mirror.Refer to Remote Mirror Replacement . Is the repair complete? | -- | Go to Step 38 | -- | ||||||
32 |
Is the test light on? | -- | Go to Step 33 | Go to Step 34 | ||||||
33 | Repair a poor connection or an open in circuit 750 (BLK) between the inoperative sideview mirror harness connector terminal E and splice S 303. | -- | Go to Step 38 | -- | ||||||
34 | Repair a poor connection or an open in circuit 267 (ORN) between connector C 200 terminal G 2 and the inoperative outside rearview mirror harness connector terminal D. Is the repair complete? | -- | Go to Step 38 | -- | ||||||
35 | Inspect the Heated Mirror fuse in the fuse block to see if it is open. Is the fuse open? | -- | Go to Step 36 | Go to Step 37 | ||||||
36 | Repair a short to ground in circuit 267 (ORN). Is the repair complete? | -- | Go to Step 38 | -- | ||||||
37 | Repair a poor connection or an open in circuit 293 (PPL) between the fuse block and splice 268. Is the repair complete? | -- | Go to Step 38 | -- | ||||||
38 | Verify that the system operates properly. Does the system operate properly? | -- | System OK | Go to Symptoms |
