Ford B-Max 2014: Start/Stop systeem werkt niet, foutcodes

Hallo,

De B-max van mijn buren heeft een start/stop systeem welke is gestopt met werken. Het lampje/knopje blijft op 'Off' staan, je kan hem indrukken maar veranderd dus niks. Hierop heb ik hem uitgelezen en krijg ik de volgende meldingen naar voren. Ik word er helaas niet wijzer van. Kan iemand mij hierbij helpen? Motorstoringslampje brand overigens niet.

P086B(1E) [0x086B1E]
Neutral position (NP) sensor - circuit range/performance
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
----------------------------
P08AE(00) [0x08AE00]
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
----------------------------
P086D(00) [0x086D00]
Neutral position (NP) sensor - circuit high
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
----------------------------
P08B0(00) [0x08B000]
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
----------------------------
P086B(38) [0x086B38]
Neutral position (NP) sensor - circuit range/performance
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
----------------------------
P08AE(38) [0x08AE38]
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
----------------------------
P086A(00) [0x086A00]
Neutral position (NP) sensor - circuit open
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
============================
Engine control unit
No DTC found.