Honda PGM-FI Code 54: Bank Angle Sensor — Causes & Fix
On Honda motorcycles and scooters, PGM-FI code 54 means the ECM has detected a fault in the bank angle (tip-over) sensor circuit. This safety sensor cuts fuel and ignition if the bike falls over.
- Applies to
- Honda motorcycles
- Est. repair cost
- $20 – $130
- Time to fix
- 30–90 minutes
What it means
Usual causes are the sensor left in the tripped position, a loose/corroded connector, damaged wiring, or a failed bank angle sensor. This is a generic Honda PGM-FI (Programmed Fuel Injection) code, so it applies across Honda FI models — scooters and underbones like the Click, Vario, BeAT, PCX, ADV, and Wave, as well as CB/CBR motorcycles. Honda shows it by blinking the FI/MIL warning light: a long blink counts as ten and a short blink counts as one (e.g. one long + two short = code 12). Clearing the code usually needs Honda’s service-check reset procedure (jumping the DLC service connector, or a scan tool) after the fault is fixed; simply resetting without repair will let the light return.
Symptoms
- FI/MIL light on with code 54
- Engine won’t start or cuts out
- Often appears after a tip-over or drop
How to fix it
- 1
Reset the sensor
1. Stand the bike fully upright. 2. Turn the ignition off, then on again — after a genuine tip-over this often clears the cut-off.
- 2
Inspect the connector and wiring
1. Locate the bank angle sensor (often under the seat/side cover). 2. Reseat the connector and check for corrosion or broken wires.
- 3
Replace if faulty, then reset
1. Replace a sensor that stays tripped or reads out of spec. 2. Clear the code.
Frequently asked questions
My bike won’t start after it fell — is code 54 why?
Very likely. The tip-over sensor cuts the engine as a safety feature. Stand the bike up and cycle the ignition; if it still won’t start, check the sensor and its connector.
Last updated July 15, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.