C1281 · blink 81 – Master cylinder pressure sensor output signal is faulty

System: ABS with BA & EBD
Dashboard light: ABS warning
Check-engine blink code: 81
Applies to: All E120 with ABS (BA & EBD)
Description: Master cylinder pressure sensor output signal is faulty
Possible causes: Master cylinder pressure sensor
What to check: Inspect listed trouble area (no detail page parsed; trouble-area assignment from chart row layout)
Confidence: high (official Toyota RM821E chart; trouble-area row alignment medium)

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