Step | Action | Value(s) | Yes | No | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tools Required
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1 | Did you perform the Horns Diagnostic System Check? | -- | Go to Step 2 | |||||||||
2 | Inspect the horn fuse. Is the horn fuse open? | -- | Go to Step 3 | Go to Step 4 | ||||||||
3 | Repair the short to ground in the controlled voltage CKT or the horns. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |||||||||
4 |
Does the test light illuminate? | -- | Go to Step 6 | Go to Step 5 | ||||||||
5 | Replace the UFB. Is the repair complete? | -- | -- | |||||||||
6 |
Does the test light illuminate? | -- | Go to Step 10 | Go to Step 7 | ||||||||
7 |
Is the resistance within the specified value? | 0-5 ohms | Go to Step 9 | Go to Step 8 | ||||||||
8 | Inspect the horn switch and harness between C211 and horn switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |||||||||
9 | Locate and repair the open in the ground CKT between the horn relay and C211. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |||||||||
10 | Connect a fused jumper between cavity 3 and cavity 5 of the horn relay socket. Refer to Using Fused Jumper Wires in Wiring Systems. Do the horns sound? | -- | Go to Step 11 | Go to Step 12 | ||||||||
11 | Replace the horn relay. Is the repair complete? | -- | -- | |||||||||
12 |
Did the test light illuminate? | -- | Go to Step 14 | Go to Step 13 | ||||||||
13 | Repair the open in the controlled voltage CKT. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |||||||||
14 | Test ground CKT cavity A for resistance to ground. Refer to Testing for Continuity in Wiring Systems. Is the resistance within the specified value? | 0-5ohms | Go to Step 15 | Go to Step 16 | ||||||||
15 | Replace both horns. Refer to Horn Replacement - Left Side and Horn Replacement - Right Side . Is the repair complete? | -- | -- | |||||||||
16 | Repair horn grounds. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |||||||||
