Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
|
Important: Use J 35616-A Connector Test Adapter Kit when a diagnostic procedure requires inspecting or probing a terminal. 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 | Did you perform the Horns System Check? | -- | Go to Step 2 | Go to Horns System Check |
2 | Inspect the vehicle for the theft deterrent option. Is the vehicle equipped with the theft deterrent option? | -- | Go to Step 3 | Go to Step 4 |
3 | Inspect the vehicle for Body Control Module (BCM) DTCs. Are any DTCs present? | -- | Go to Step 4 | |
4 | Remove the horn relay. Do the horns stop sounding? | -- | Go to Step 5 | Go to Step 14 |
5 | Using a test light, connect between the horn relay terminals circuit 740 and circuit 28. Is the test light on? | -- | Go to Step 6 | Go to Step 8 |
6 |
Is the test light on? | -- | Go to Step 7 | Go to Step 9 |
7 |
Is the test light on? | -- | Go to Step 10 | Go to Step 11 |
8 | Replace the horn relay. Refer to Horn Relay Replacement for service procedure. Is the repair complete? | -- | Go to Horns System Check | -- |
9 | Replace the BCM. Refer to Body Control Module Replacement for service procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration for service procedure. Is the repair complete? | -- | Go to Horns System Check | -- |
10 | Repair short to ground in circuit 28 between the BCM and the underhood accessory wiring junction block or between the underhood accessory wiring junction block and connector C201 terminal A17. Is the repair complete? | -- | Go to Horns System Check | -- |
11 |
Is the test light on? | -- | Go to Step 12 | Go to Step 13 |
12 | Repair short to ground in circuit 28 between the horn switch and connector C201 terminal A17. Is the repair complete? | -- | Go to Horns System Check | -- |
13 | Replace the horn switch. Refer to Inflatable Restraint Steering Wheel Module Replacement for service procedure. Is the repair complete? | -- | Go to Horns System Check | -- |
14 | Disconnect the underhood accessory wiring junction block connector C3 terminal C8. Do the horns stop sounding? | -- | Go to Step 15 | Go to Step 16 |
15 | Replace the underhood accessory wiring junction block. Refer to Accessory Wiring Junction Block Replacement for service procedure. Is the repair complete? | -- | Go to Horns System Check | -- |
16 | Repair short to B+ in circuit 29 between the horn connector and the underhood accessory wiring junction block. Is the repair complete? | -- | Go to Horns System Check | -- |
