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 62, Turbo Boost Sensor Circuit Low: Notes
PCM sends a 5-volt reference signal to boost sensor. As manifold pressure changes, electrical resistance of boost sensor also changes. By monitoring sensor output voltage, PCM detects how much pressure is being produced by turbocharger in intake manifold. PCM uses boost sensor to control turbo boost and fuel at different loads. DTC 62 will set when boost signal voltage is less than .8 volt. PCM will default to no turbo boost and limited fuel.
- This step determines if DTC 62 is result of a hard failure or an intermittent condition.
- This step simulates conditions for DTC 61. If PCM recognizes change, then PCM, 5-volt reference circuit and boost signal circuit are okay.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.