P0105 · blink 31 – Manifold Absolute Pressure/Barometric Pressure Circuit

System: Engine control (EFI)
Dashboard light: Check engine light (MIL)
Check-engine blink code: 31
Applies to: 1KR-FE: M300 (Sirion export = JDM Boon M300S/M301S(4WD? see gaps) & Passo KGC10/KGC15). JDM-spec ECU not separately documented | K3-VE: M301 (Sirion 1.3 = JDM Boon M310S? / Passo QNC10)
Description: Manifold Absolute Pressure/Barometric Pressure Circuit
Detection / symptoms: Detection: 1.When the signals from the manifold absolute pressure/intake air temperature integral type sensor (Manifold absolute pressure sensor section) are not outputted continuously over a certain length of time: NOTE • After confirming DTC P0105/31, use the OBD @ generic scan tool or diagnosis tester (DS-21/DS-@) to confirm the "Manifold abs. pressure" fr
Possible causes: Trouble area: 1.Open wire or short circuit in manifold absolute pressure sensor circuit 2.Manifold absolute pressure, intake air temperature integral type sensor (Manifold absolute pressure section) sensor 3.EFI ECU
What to check: Checking points: 1.Are the signals from the manifold absolute pressure/intake air temperature integral type sensor (Manifold absolute pressure sensor section) inputted to the EFI? 2.Is the harness between the manifold absolute pressure/intake air temperature integral type sensor (Manifold absolute pressure sensor se; Unit check B8-219: VCPM-E2PM 4.5-5.5 V; PIM-E2PM 3.1-4.1 V (IG ON); PIM changes when cranking
Confidence: high (factory manual, export spec)

From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights