Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pinpoint Test Bl: SASM Ignition Input Circuit Fault: Notes
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.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.