Step
| Action
| Value(s)
| Yes
| No
|
1
|
- Disconnect the inoperative horn.
- Connect a test lamp from horn connector CKT 29 terminal B
to ground.
- Press the horn switch while observing the test lamp.
Does the test lamp light?
| --
| Go to
Step 2
| Go to
Step 3
|
2
|
- Connect a test lamp from horn connector CKT 29 terminal B
to CKT 1250/1350 terminal A.
- Press the horn switch while observing the test lamp.
Does the test lamp light?
| --
| Go to
Step 4
| Go to
Step 5
|
3
|
- Test for a poor connection.
- Test for an open in CKT 29, between underhood accessory
wiring junction block connector C3 terminal A7/B7 and the horn
connector terminal B.
- If CKT 29 is OK, replace the underhood accessory wiring
junction block.
Relay/Fuse Center Replacement
Is the repair complete?
| --
| System OK
| --
|
4
|
- Test for a poor connection at the horn.
- Replace the horn if the connection is good. Refer to
Horn Replacement
.
Is the repair complete?
| --
| System OK
| --
|
5
|
- Test for a poor connection.
- If OK, repair the open in CKT 1250/1350, between the horn
and G101/G102.
Is the repair complete?
| --
| System OK
| --
|
