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.
DTC 12-1,12-2,12-3: Lateral/Longitudinal Acceleration Sensor Malfunction
- Turn the ignition switch ON (II).
- Make sure the HDS communicates with the vehicle and the SH-AWD control unit. If it doesn't, troubleshoot the DLC circuit; '05-07 models (see '05-07 MODELS ), '08 model (see '08 MODEL ).
- Check for DTCs in the VSA system with the HDS.
Are any VSA System DTCs indicated?
YES - Go to the indicated DTCs troubleshooting.
NO - Go to step 4.
- Place the vehicle on a flat surface and compare the lateral G sensor and the lateral G sensor neutral position data in the DATA LIST with the HDS.
Is there difference between those two within 0.2 V?
YES - Replace the yaw rate-lateral/longitudinal acceleration sensor (see YAW RATE-LATERAL/LONGITUDINAL ACCELERATION SENSOR REPLACEMENT ).
NO - Do the yaw rate-lateral/longitudinal acceleration neutral position memorization (see YAW RATE-LATERAL/LONGITUDINAL ACCELERATION NEUTRAL POSITION MEMORIZATION ).
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.