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.
Engine Brake
The engine brake is enabled by pressing the engine brake switch. When the engine brake is enabled the engine brake indicator will be turned on. The engine brake indicator will blink if the engine brake is disabled due to engine operating conditions or a system fault is detected. When the engine brake is enabled the PCM controls the turbocharger actuator to move the VGT vanes to create higher exhaust back pressure during decel events. If the engine brake switch is enabled, the engine brake will automatically engage anytime the accelerator pedal is released and the engine RPM is greater than a calibrated threshold. Pressing the accelerator pedal will disengage the engine brake and return the VGT vanes to the normal position.
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.