Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Backprobe the MaxiFuse® Block/Mini-Relay Center with a test lamp from the horn relay terminal B1 to chassis ground. Does the test lamp light? | -- | Go to Step 2 | Go to Step 3 |
2 | Backprobe the MaxiFuse® Block/Mini-Relay Center with a test lamp from the horn relay terminal B3 to chassis ground. Does the test lamp light? | -- | Go to Step 4 | Go to Step 5 |
3 | Locate and repair the open in CKT 140 (ORN) between the IP Fuse Block and the relay center. Is the repair complete? | -- | System OK | -- |
4 | Backprobe the MaxiFuse® block/mini-relay center with a test lamp from horn relay terminal B2 to B+ while pressing the horn switch. Does the test lamp light? | -- | Go to Step 6 | Go to Step 7 |
5 | Locate and repair the open in CKT 140 (ORN) between the horn relay terminals B1 and B3. Is the repair complete? | -- | System OK | -- |
6 | Backprobe the MaxiFuse® block/mini-relay center with a test lamp from the horn relay terminal B5 to ground while pressing the horn switch. Does the test lamp light? | -- | Go to Step 8 | Go to Step 7 |
7 | Replace the horn relay. Is the horn operative? | -- | System OK | Go to Step 13 |
8 | Backprobe the horn with a test lamp from the (DK GRN) terminal to ground while pressing the horn switch. Does the test lamp light? | -- | Go to Step 9 | Go to Step 10 |
9 | Backprobe the horn with a test lamp from CKT 150 (BLK) to B+. Does the test lamp light? | -- | Go to Step 11 | Go to Step 12 |
10 | Locate and repair the open in CKT 29 (DK GRN) between the relay center and the horn(s). Is the repair complete? | -- | System OK | -- |
11 | Replace the horn. Is the repair complete? | -- | System OK | -- |
12 | Locate and repair the open in CKT (BLK) between the horn and G102. Is the repair complete? | -- | System OK | -- |
13 | Backprobe the turn signal switch harness connector with a test lamp from terminal G to B+ while pressing the horn switch. Does the test lamp light? | -- | Go to Step 14 | Go to Step 15 |
14 | Locate and repair the open in CKT 28 (BLK) circuit between the horn relay and the turn signal switch connector. Is the repair complete? | -- | System OK | -- |
15 | Replace the horn switch. Is the repair complete? | -- | System OK | -- |
