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 77-6: Steering Angle Sensor Malfunction
- Turn the ignition switch to ON (II).
- Make sure the HDS communicates with vehicle and the SH-AWD control unit. If it doesn't, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
- Clear the DTC with the HDS.
- Start the engine.
- Check for DTCs with the HDS.
Is DTC 77-6 indicated?
YES -Go to step 6.
NO -Intermittent failure, the system is OK at this time.
- Check for DTCs in the VSA system with the HDS.
Are any steering angle sensor DTCs indicated?
YES -go to the indicated DTCs troubleshooting.
NO -Update the SH-AWD control unit if it does not have the latest software (see UPDATING THE SH-AWD CONTROL UNIT ), or substitute a known-good SH-AWD control unit (see SH-AWD Control Unit Replacement ) and recheck. If the symptom/indication goes away with the updated SH-AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good SH-AWD control unit, replace the original SH-AWD control unit (see SH-AWD Control Unit Replacement ).
NO RELATED
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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.