DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B0018-Auxiliary (Secondary and Tertiary) Serial Data Bus Fault
DTC B0018
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Data Link Connector (DLC) Schematics | |||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Inspect the auxiliary secondary and tertiary serial data circuits between the body control module and the modules on the serial data bus for and open or short to ground or voltage. Refer to Data Link Connector (DLC) Schematics . Did you complete the repair? |
Go to Diagnostic System Check - Vehicle | Go to Step 3 |
| 3 | Inspect the connectors of each module for loose or damaged terminals that could cause an intermittent condition. Did you complete the repair? |
Go to Diagnostic System Check - Vehicle | Go to Step 4 |
| 4 | Replace the body control module. Refer to Body Control Module Replacement . Did you compete the repair? |
Go to Diagnostic System Check - Vehicle | - |