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 P1106: Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem
Perform PCM reset procedure. See PCM RESET PROCEDURE/CLEARING CODES under SELF-DIAGNOSTIC SYSTEM. Start engine and hold it at 3000 RPM with no loads and transmission in Park or Neutral, until cooling fan comes on. Let engine idle. Connect SCS service connector. Test drive vehicle with transmission in "2" (A/T) or 4th gear (M/T). Accelerate at wide open throttle for 5 seconds. If DTC P1106 resets, substitute a known-good PCM and recheck. If DTC does not reset, replace original PCM. If DTC P1106 does not set, problem is intermittent. System is okay at this time.
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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.