If the red light and FI are lit on the dashboard, then the electronic "brains" detect a malfunction of some sensor or mechanism. To read the error code, you need to put the tidy in diagnostic mode. The repair and service manual claims that it is necessary to insert a special stray into the diagnostic connector under the passenger seat and there will be happiness. However, fortunately, it is possible without this - it is enough to short-circuit two contacts in this connector. Finding the diagnostic connector is easy - it's a white piece of plastic with six pins, covered with a piece of rubber. In the photo, its appearance and where to look for it. In addition to displaying the error code, the scan tool instrument panel also displays the status of the TPS (Throttle Position Sensor). This sensor tells the “brains” the position of the throttle, or rather the air damper, therefore, in order to achieve optimal power, it is important that it shows the value of the value.
Calibration is quite simple - we raise the gas tank and turn the sensor on the right side near the air dampers until the "-" sign in front of the error code (C00 - no error) is in the middle. "_" and "¯" are invalid values. I didn't have to twist anything, everything was in order.
Well, a little more about how to turn on the diagnostic mode. To do this, turn off the ignition, find the two extreme contacts in the diagnostic connector, from which the wires extend (one wire is missing on the opposite edge) and short them with an electrical wire. It is interesting that the paper clip did not cope with this task, I had to look for an honest wire. :) Then turn on the ignition and look at the diagnostic information.
A close-up photo of the connector so that no one confuses anything
And finally, a list of error codes for the Suzuki GSX-R 1000 K4. In principle, it will fit most motorcycles of the GSX-R series,
it's just that in new models this list is slightly expanded.
C14 - THROTTLE POSITION SENSOR
C15 - COOLANT TEMPERATURE SENSOR
C21 - AIR TEMPERATURE SENSOR
C22 - ATMOSPHERIC PRESSURE SENSOR
C23 - ROPS SENSOR
C24 - IGNITION SIGNAL #1
C25 - IGNITION SIGNAL #2
C26 - IGNITION SIGNAL #3
C27 - IGNITION SIGNAL #4
C28 - SECONDARY THROTTLE STEP MOTOR
C29 - SECONDARY THROTTLE POSITION SENSOR
C30 - SECONDARY THROTTLE CONTROL UNIT
C31 - TRANSMISSION SENSOR
C32 - INJECTOR SIGNAL #1
C33 - INJECTOR SIGNAL#2
C34 - INJECTOR SIGNAL#3
C35 - INJECTOR SIGNAL#4
C41 - PUMP
C42 - IGNITION SIGNAL
C46 - EXHAUST VALVE MOTOR
Suzuki DTC Codes PDF Download