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.
Conditions for Setting the DTC
B3623
Distance Sensing Cruise Control Follow Gap Set Circuit - Invalid Signal Received
B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581
Cruise Control Switch Circuit - Invalid Signal Received
P0589, P0592, P0593, P155B, P155C
Cruise Control Multifunction Switch 2 Circuit - Invalid Signal Received
P155A
Cruise Control Switch State Undetermined
P162C
Vehicle Speed Limiting/Warning Switch Circuit - Undetermined State
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.