Pinpoint Test Bl: SASM Ignition Input Circuit Fault: Notes
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Refer to VEHICLE DYNAMIC SYSTEMS for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
The SASM requires an operating voltage between 8 and 17 volts. The SASM receives fused ignition voltage from the BCM run-start bus. The SASM has a single ground circuit. The SASM sets this DTC if there is excessive resistance or an open in the ignition circuit.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| SASM U3011:13 | Ignition Input Off: Circuit Open | Sets if the ignition voltage supplied to the SASM is below 6 volts for more than 1 second. |
Possible Sources
- Fuses
- Wiring, terminals or connectors
- Charging system concern
- Battery
- SASM
Visual Inspection and Pre-checks
- Make sure the vehicle battery terminals and cables are free of any corrosion and other contaminants.
- Make sure the vehicle battery terminals are tightened to their correct torque specifications.
- Make sure all SASM fuses in the BJB are OK.