Yamaha YZF-R1 2007 Service Manual

IMMOBILIZER SYSTEM8-78EAS27721SELF-DIAGNOSIS FAULT CODE INDICATIONWhen a system failure occurs, the error code number is indicated in the LCD display of meter andthe immobilizer system indicator light blinks at the same time. The pattern of blinking also shows theerror code.Faultcode Part Symptom Cause Action51 IMMOBILIZERUNITCode cannot betransmitted betweenthe key and immobi-lizer unit.1 Radio wave interfer-ence caused byobjects around thekeys and antennas.2 Immobilizer unit mal-function.3 Key malfunction.1 Keep magnets,metal objects, andother immobilizersystem keys awayform the keys andantennas.2 Replace the mainswitch/immobi-lizer unit.3 Replace the key.52 IMMOBILIZERUNITCodes between thekey and immobilizerunit do not match.1 Signal received fromother transponder(failed to recognizecode after ten consec-utive attempts).2 Signal received fromunregistered standardkey.1 Place the immobi-lizer unit at least50 mm away fromthe transponder ofother vehicles.2 Register the stan-dard key.53 IMMOBILIZERUNITCodes cannot betransmitted betweenthe ECU and theimmobilizer unit.Noise interference or dis-connected lead/cable.1 Interference due toradio wave noise.2 Disconnected commu-nication harness.3 Immobilizer unit mal-function.4 ECU malfunction.1 Check the wireharness and con-nector.2 Replace the mainswitch/immobi-lizer unit.3 Replace the ECU.54 IMMOBILIZERUNITCodes transmittedbetween the ECUand the immobilizerunit do not match.Noise interference or dis-connected lead/cable.1 Interference due toradio wave noise.2 Disconnected commu-nication harness.3 Immobilizer unit mal-function.4 ECU failure.(The ECU or immobi-lizer unit was replacedwith a used unit fromanother vehicle.)1 Register the codere-registering key.2 Check the wireharness and con-nector.3 Replace the mainswitch/immobi-lizer unit.4 Replace the ECU.55 IMMOBILIZERUNITKey code registra-tion malfunction.Same standard key wasattempted to be regis-tered two consecutivetimes.Register anotherstandard key.Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keysemail: info@motomatrix.co.uk