Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
|
Important: Use the J 35616 Connector Test Adapter Kit when a diagnostic procedure requires inspecting or probing. Use of the adapter prevents damage to the terminal. Use of the adapter also indicates if the contact tension is sufficient. If the contact tension seems incorrect, refer to Checking Terminal Contact. | ||||
1 | Inspect the vehicle for the UA6 theft deterrent option. Is the vehicle equipped with the UA6 theft deterrent option? | -- | Go to Step 2 | Go to Step 3 |
2 | Inspect the vehicle for body control module (BCM) diagnostic trouble codes (DTCs). Are there any DTCs present? | -- | Go to Body Control Module Diagnostic Information in Body Control System | Go to Step 3 |
3 |
Does the test lamp illuminate? | -- | Go to Step 4 | Go to Step 5 |
4 |
Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 5 |
5 | Replace the underhood accessory wiring junction block. Is the repair complete? | -- | -- | |
6 |
Does the test lamp illuminate? | -- | Go to Step 7 | Go to Step 8 |
7 | Momentarily connect a 5A fused jumper between the horn relay terminals CKT 29 and CKT 740. Do the horns sound? | -- | Go to Step 10 | Go to Step 19 |
8 |
Does the test lamp illuminate? | -- | Go to Step 9 | Go to Step 10 |
9 | Inspect for a poor connection at the switch ground in the steering wheel. Is there a poor connection? | -- | Go to Step 11 | Go to Step 12 |
10 | Repair a short to B+ or an open in CKT 28 between the accessory wiring junction block and the horn switch. Is the repair complete? | -- | System OK | -- |
11 | Repair the poor connection at the switch ground. Is the repair complete? | -- | System OK | -- |
12 | Replace the horn switch. Refer to Horn Replacement . Is the repair complete? | -- | System OK | -- |
13 | Replace the horn relay. Refer to Horn Relay Replacement . Is the repair complete? | -- | System OK | -- |
14 |
Does the test lamp illuminate? | -- | Go to Step 15 | Go to Step 16 |
15 |
Does the test lamp illuminate? | -- | Go to Step 17 | Go to Step 18 |
16 |
Does the test lamp illuminate? | -- | Go to Step 19 | Go to Step 5 |
17 | Replace the horn assembly. Refer to Horn Replacement . Is the repair complete? | -- | System OK | -- |
18 | Repair the open in CKT 1350 between the horn assembly connector C3 terminal A and G101. Is the repair complete? | -- | System OK | -- |
19 | Repair a poor connection or an open in CKT 29 between the accessory wiring junction block connector C3 terminal B7 and the horn connector terminal B. Is the repair complete? | -- | System OK | -- |
