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.
Circuit Description
Seat Control Module (SCM) has 2 main power feeds (high and low) and one main ground. Low power feed (battery 1) is used to provide power for SCM logic and internal driver operation. High power feed (battery 2) is used to provide power for systems that draw higher amounts of current (motor, lights, etc.). For most functions, SCM will operate properly when vehicle system voltage is 9.0-16.0 volts. SCM also monitors voltage level at battery 1 and battery 2 circuits, and can determine if voltage level received is out of range.
DTC B0846 will set if SCM detects battery 2 voltage range less 8.5 volts or more than 16.3 volts for more than 2 seconds. DTC B0846 will store as a history code in SCM memory. No driver warning will be displayed. DTC can only set as history even if malfunction is current.
Under all fault conditions, DTC B0846 will clear automatically when battery 2 voltage range is 8.5-16.3 volts for more than 2 seconds. Current and history DTCs can be cleared using scan tool or Instrument Panel Cluster (IPC) clearing DTCs feature.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.