Yamaha error code 46, is a flat battery error code. Malfunction in ECU.”įuel system voltage: incorrect voltage supplied to the fuel injector and fuel pump.ĮEPROM fault code number: an error is detected while reading or writing to EEPROM Malfunction in the engine side of the neutral switch. Malfunction in vehicle speed sensor detected unit. Yamaha error code 42 could also be: Defective speed sensor. Open or short circuit in the wiring harness. Speed sensor: no normal signals are received from the speed sensor or Gear position switch: open or short circuit is detected or Clutch switch: open or short circuit detected. Lean angle sensor: open or short circuit detected. Injector: open or short circuit detected. If ISC is heard, then a component other than the ISC unit is defective Idle Speed Control (ISC): If ISC is not heard, then ISC is defective. O2 sensor: no normal signals are received from the O2 sensor (lambda)Ĭylinder #1 ignition coil: open or short circuit detected in the primary lead of the cylinder #1 ignition coil.Ĭylinder #2 ignition coil: open or short circuit detected in the primary lead of the cylinder #2 ignition coil. Intake air temperature: open or short circuit detected. Sidestand switch: a break or disconnection of the black/red lead of the ECU is detected.Ĭoolant temperature sensor: open or short circuit detected. Throttle position sensor: open or short circuit detected. Intake air pressure sensor: hose system malfunction (clogged or detached hose). Intake air pressure sensor: open or short circuit detected. Yamaha Fault Code List Yamaha Fault code list #Ĭylinder identification sensor error – DIAG mode (none)Ĭrankshaft position sensor: no normal signals are received from the crankshaft position sensor 4 10 Reasons why your motorcycle won’t start – no fault code.

2015 yamaha r1 error codes