Step | Action | Value(s) | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Important: Use the J 35616
whenever a diagnostic procedure requires you to test or probe a terminal.
Use the J 35616
for the following reasons:
| ||||||||||
1 | Test the vehicle for UA6 theft deterrent option. Is the vehicle equipped with UA6 system? | -- | Go to Step 2 | Go to Step 3 | ||||||
2 | Test the vehicle for body control module DTCs. Refer to Diagnostic System Check - Body Control System in Body Control Systems. Are any DTCs present? | -- | Go to the appropriate DTC table in Body Control Systems | Go to Step 3 | ||||||
3 |
Does the test lamp light? | -- | Go to Step 4 | Go to Step 5 | ||||||
4 | Connect a test lamp between horn relay terminal 30 and ground. Does the test lamp light? | -- | Go to Step 6 | Go to Step 5 | ||||||
5 |
Is the symptom still present? | -- | System OK | -- | ||||||
6 |
Does the test lamp light? | -- | Go to Step 10 | Go to Step 7 | ||||||
7 |
Does the test lamp light? | -- | Go to Step 9 | Go to Step 8 | ||||||
8 | Repair a short to B+ power or an open in CKT 28. Is the symptom still present? | -- | System OK | -- | ||||||
9 |
Is the symptom still present? | -- | System OK | -- | ||||||
10 | Momentarily connect a fused jumper (5A) between horn relay terminal 30 and terminal 87. Do the horns sound? | -- | Go to Step 11 | Go to Step 12 | ||||||
11 | Replace the horn relay, in Underhood Accessory Wiring Junction Block. Is the symptom still present? | -- | System OK | -- | ||||||
12 |
Do the horns sound? | -- | Go to Step 14 | Go to Step 13 | ||||||
13 | Replace the inoperative horns. Horn Replacement Is the symptom still present? | -- | System OK | -- | ||||||
14 | Using a J 39200 , test for continuity to ground in the following circuits:
Do CKT 1250 and CKT 1350 show continuity to ground? | -- | Go to Step 16 | Go to Step 15 | ||||||
15 | Repair CKT 1250 or CKT 1350 for an open to G102 or G101. Is the repair complete? | -- | System OK | -- | ||||||
16 | Repair an open in CKT 29, between the underhood accessory wiring junction block and the inoperative horn(s). Is the repair complete? | -- | System OK | -- |