Kawasaki motorcycle fault codes and warning indicators, with meanings, causes, and step-by-step fixes.
69 models · 22 error codes
On Kawasaki motorcycles, DFI service code 11 means a fault in the main throttle sensor circuit — the sensor that tells the ECU how far the throttle is open.
On Kawasaki motorcycles, DFI service code 12 means a fault in the intake (inlet) air pressure sensor circuit — the sensor that reads manifold pressure for fuelling.
On Kawasaki motorcycles, DFI service code 13 means a fault in the intake (inlet) air temperature sensor circuit — used to fine-tune fuelling for air density.
On Kawasaki motorcycles, DFI service code 14 means a fault in the water (coolant) temperature sensor circuit — used by the ECU for cold-start enrichment and fan control.
On Kawasaki motorcycles, DFI service code 21 means a fault in the crankshaft sensor circuit — the sensor that gives the ECU engine speed and position for spark and injection timing.
On Kawasaki motorcycles, DFI service code 31 means a fault in the vehicle-down (lean-angle) sensor circuit — the safety sensor that cuts the engine if the bike falls over.
On Kawasaki motorcycles, DFI service code 33 means a fault with the oxygen (O2) sensor — often reported as inactive — the sensor the ECU uses to trim the mixture for clean, efficient running.
On Kawasaki motorcycles, DFI service code 51 means a fault in the ignition coil #1 circuit — the ECU isn’t seeing a correct primary signal from that coil.
On Kawasaki motorcycles and scooters, DFI service code 32 means a fault in the subthrottle (secondary throttle) position sensor circuit — the sensor that reports the position of the ECU-controlled secondary throttle valves.
On Kawasaki motorcycles and scooters, DFI service code 52 means a fault in the ignition coil #2 circuit — the ECU isn’t seeing a correct primary signal from that coil.
On Kawasaki motorcycles and scooters, DFI service code 56 means a fault in the radiator fan relay circuit — the relay that switches the cooling fan on and off.
On Kawasaki motorcycles and scooters, DFI service code 62 means a fault in the subthrottle valve actuator — the small motor that moves the ECU-controlled secondary throttle valves.
On Kawasaki motorcycles and scooters, DFI service code 64 means a fault in the air switching valve circuit — an emissions device that feeds air into the exhaust to reduce emissions.
On Kawasaki motorcycles and scooters, DFI service code 67 means a fault in the oxygen sensor heater circuit — the heater that brings the O2 sensor up to operating temperature quickly.
On Kawasaki motorcycles and scooters, DFI service code 94 means the oxygen sensor signal is out of the normal range — the ECU sees an implausible reading from the O2 sensor.
On Kawasaki motorcycles and scooters with an immobilizer, code 35 means an immobilizer amplifier malfunction — the amplifier that reads the key’s transponder and passes the signal to the ECU (it can also mean an open or short in the amplifier wiring).
On Kawasaki motorcycles and scooters with an immobilizer, code 36 means the system detected a blank or unregistered key — no valid transponder code was read from the key.
On Kawasaki motorcycles and scooters, DFI service code 15 means a fault in the atmospheric (barometric) pressure sensor circuit — used to compensate fuelling for altitude and air pressure.
On Kawasaki motorcycles and scooters, DFI service code 23 means a fault in the camshaft position sensor circuit (open or short) — the sensor that identifies the cylinder cycle for injection and ignition timing.
On Kawasaki motorcycles and scooters, DFI service code 25 means a fault in the vehicle speed sensor circuit — the sensor that reports road speed to the ECU and speedometer.
On Kawasaki motorcycles and scooters, DFI service code 42 means a fault in the fuel injector circuit — the ECU isn’t driving an injector correctly.
On Kawasaki motorcycles and scooters, DFI service code 46 means a fault in the gear position sensor circuit — the switch that tells the ECU which gear is selected (for the gear indicator and fuel/ignition maps).
These codes apply across Kawasaki models, including:
