PINPOINT TEST J : B108A:01 or B1142:29: Notes
Diagnostic Overview
B108A:01 or B1142:29
Refer to Power Distribution/BCM for schematic and connector information.
Normal Operation and Fault Conditions
On vehicles equipped with a conventional ignition switch, fused battery voltage is sent to the ignition switch from BCM fuse 28 (15A). This voltage is then sent to the BCM along 1 of 3 circuits, depending on ignition switch position.
On vehicles equipped with a start/stop switch, fused battery voltage is sent to one set of contacts in the start/stop switch from BCM fuse 28 (15A). When the switch is pressed, this voltage is then sent to the BCM, the RFA module and the PCM. The other set of contacts in the start/stop switch connects the BCM to ground. When the switch is pressed, the BCM detects this ground signal and takes appropriate action.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B108A:01 | Start Button: General Electrical Failure | This DTC sets if the BCM does not receive any ignition signal during a BCM self-test or normal operation. |
| B1142:29 | Ignition Status 1: Signal Invalid | This DTC sets when the BCM does not receive a valid ignition signal during a BCM self-test. |
Visual Inspection and Diagnostic Pre-checks
Make sure BCM fuse 28 (15A) is OK.