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.
Circuit Description
Powertrain Control Module (PCM) and Alternative Fuel Engine Control Unit (AFECU) both supply a 5-volt reference, signal and ground circuit to Manifold Absolute Pressure (MAP) sensor. As manifold pressure changes, monitored MAP sensor signal voltage changes. PCM and AFECU compare detected sensor voltage changes to a predetermined value which coincides with a change in TP sensor value. If expected MAP value is not detected and does not coincide with change in TP sensor value, DTC P0106 will set.
For duplication of DTC, ensure engine is running on alternative fuel, no AFECU DTCs are set (with the exception of DTCs P1215, P1432 and P1433), and TP sensor angle is less than 70 percent.
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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.
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