Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the BCM System Check performed? | -- | Go to Step 2 | Go to Diagnostic System Check - Body Control System in Body Control System |
2 | Was the Audible Warnings System Check performed? | -- | Go to Step 3 | |
3 |
Is YES displayed? | -- | Go to Step 4 | Go to Step 7 |
4 | Inspect the connections at the BCM. Refer to Intermittents and Poor Connections Diagnosis Are the connections in need of repair? | -- | Go to Step 5 | Go to Step 6 |
5 | Repair the connections at the BCM as necessary. Refer to Connector Repairs Is the repair complete? | -- | -- | |
6 | Replace the BCM. Refer to Body Control Module Replacement in Body Control Systems. Is the repair complete? | -- | -- | |
7 |
Is battery voltage displayed? | B+ | Go to Step 8 | Go to Step 13 |
8 |
Is battery voltage displayed? | B+ | Go to Step 9 | Go to Step 12 |
9 | Inspect for an open or high resistance in CKT 1850 between C211 and the key in ignition alarm switch (CKT 80 and CKT 50). Was an open or high resistance found? | -- | Go to Step 10 | Go to Step 11 |
10 | Repair the open or high resistance in CKT 1850 between C211 and the key in ignition alarm switch. Refer to Wiring Repairs Is the repair complete? | -- | -- | |
11 | Replace the key in ignition alarm switch. Is the repair complete? | -- | -- | |
12 | Locate and repair the open or high resistance in CKT 1850 between C211 and G207. Refer to Wiring Repairs . Is the repair complete? | -- | -- | |
13 | With a J 39200 DMM connected to ground, backprobe the BCM connector C2 terminal B9 in CKT 80. Is battery voltage measured? | B+ | Go to Step 14 | Go to Step 4 |
14 | Locate and repair the open or high resistance in CKT 80 between BCM connector C2 terminal B9 and C211 terminal B3. Refer to Wiring Repairs . Is the repair complete? | -- | -- |
