P1780 – Park / neutral position switch

System: AT
Dashboard light: Check engine light (MIL)
Check-engine blink code: —
Applies to: 1SZ-FE (by platform)
Description: Park / neutral position switch
Possible causes: Trouble area: 1.Park/neutral position switch out of adjustment or faulty 2.Wiring
What to check: Checking points: 1.Check switch adjustment on the gearbox 2.Check switch continuity in each position 3.Check wiring
Confidence: medium (Toyota Echo 1999–2002 factory diagnostics, same XP10 platform; not confirmed on JDM 1SZ-FE)

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