Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the entire Exterior Lights System Check? | -- | Go to Step 2 | |
2 | Use a DMM in order to backprobe the stoplamp/BTSI switch connector C1 from cavity A (ORN) to ground. Is the voltage within the specified range? | 10-15 V | Go to Step 3 | Go to Step 7 |
3 |
Is the voltage within the specified range? | 10-15 V | Go to Step 4 | Go to Step 11 |
4 |
Is the resistance less than the specified value? | 0.5 ohms | Go to Step 12 | Go to Step 5 |
5 | Connect a DMM from the stoplamp/BTSI switch connector C1 cavity B (WHT) to C400 or C403 cavity A (WHT). Is the resistance less than the specified value? | 0.5 ohms | Go to Step 6 | Go to Step 13 |
6 | Repair the open in CKT 17 (WHT) between the stoplamp/BTSI switch and the splice pack C302. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | -- | |
7 | Inspect the rear fuse block STOP LP Fuse for an open. Is the STOP LP Fuse OK? | -- | Go to Step 10 | Go to Step 8 |
8 | Repair the short to ground in CKT 1640 (ORN). Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Step 9 | -- |
9 | Replace the STOP LP Fuse in the rear fuse block. Is the STOP LP Fuse replacement complete? | -- | -- | |
10 | Repair the open in CKT 1640 (ORN) between the rear fuse block and the stoplamp/BTSI switch. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | -- | |
11 | Replace the stoplamp/BTSI switch. Refer to Stop Lamp Switch Replacement in Brakes. Is the stoplamp/BTSI switch replacement complete? | -- | -- | |
12 | Repair the short to ground in CKT 17 (WHT). Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | -- | |
13 | Repair the open in CKT 17 (WHT) between the stoplamp/BTSI switch and C302. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | -- |
