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.
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HOMESERVICE MANUALSCHEVROLET2016IMPALA LS, 3.6L ENG VIN NREPAIR AND DIAGNOSISSTEERINGSTEERING WHEEL AND STEERING COLUMNDIAGNOSTIC INFORMATION AND PROCEDURESDTC B285A: STEERING COLUMN POSITION MODULECIRCUIT/SYSTEM TESTINGTILT MOTOR MALFUNCTION
2016 Chevrolet Impala LS, 3.6L Eng VIN N
Tilt Motor Malfunction
2016 Chevrolet Impala LS, 3.6L Eng VIN NSECTION Tilt Motor Malfunction
- Ignition OFF, disconnect the X1 harness connector at the K99 Steering Column Position Control Module, ignition ON.
- Test for less than 1 V between each K99 Steering Column Position Control Module harness connector terminals listed below and ground.
- Steering Column Tilt Motor Down Control - terminal 1
- Steering Column Tilt Motor Up Control - terminal 2
- Steering Column Tilt Motor Signal - terminal 4
- If 1 V or greater
Repair the short to voltage on the circuit.
- If less than 1 V
- Ignition OFF.
- Test for infinite resistance between each K99 Steering Column Position Control Module harness connector terminals listed below and ground.
- Steering Column Tilt Motor Down Control - terminal 1
- Steering Column Tilt Motor Up Control - terminal 2
- Steering Column Tilt Motor Signal - terminal 4
- If less than infinite resistance
Repair the short to ground on the circuit.
- If Infinite resistance
- Replace the M68 Steering Column Tilt Motor.
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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.