Honda TRANSALP XL600-650V (1987-2002) [158/291] Ignition system 5 9

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Ignition system 5 9 present the indicator unit is faulty and must be replaced with a new one see Chapter 9 If there is no voltage check for continuity in the wiring referring to the Wiring Diagrams at the end of Chapter 9 The green wire goes to earth ground 41 If Ihe lights have come on remove the left hand side panel see Chapter 8 Disconnect the ICU 22 pin wiring connector Using a voltmeter connect the positive ve probe to the white red wire terminal on the loom side of the indicator connector and the negative ve probe to earth ground Turn the ignition ON there should be battery voltage 42 If there was no voltage using a voltmeter connect the positive probe to the white red wire terminal on the loom side of the indicator connector and the negative probe to the green wire terminal on the loom side of the instrument cluster connector Turn the ignition ON there should be no voltage for two seconds then there should be battery voltage If there is no voltage after two seconds check for continuity in the wiring referring to the Wiring Diagrams at the end of Chapter 9 The green wire goes to earth ground If no voltage is present the indicator unit is faulty and must be replaced with a new one see Chapter 9 If there is voltage check for continuity In the white red wire between the indicator unit and the ICU 43 If there is voltage in Step 41 disconnect the ICU wiring connector Using a voltmeter connect the positive probe to the black white wire terminal on the loom side of the ICU connector and the negative probe to earth ground Turn the ignition ON there should be battery voltage If there is no voltage check for continuity In the black white wire referring to the Wiring Diagrams at the end of Chapter 9 If voltage is present check for continuity to earth ground in the green wire If the wiring is good check the ICU connector for loose damaged or corroded terminals If the connector is good then the ICU could be faulty and should be checked by a Honda dealer Indicator light stays on when ignition switched ON 44 Check that none of the other registered keys are close to the receiver If they are remove them and try the ignition again 45 Turn the ignition ON with a spare key and check the indicator light which should come on for two seconds then go out If It does the first key is faulty If it doesn t perform the fault diagnosis procedure described above If a fault code is displayed use the appropriate table to determine the fault and the solution 46 If no fault code is displayed or the system does not go into fault diagnosis mode remove the seat see Chapter 8 Disconnect the ICU 22 pin black wiring connector Using a voltmeter connect the positive probe to the white red wire terminal on the loom side of the indicator connector and the negative probe to earth ground Turn the ignition ON there should be battery voltage If there is no voltage check for continuity in the white red wire between the ICU and the indicator unit 47 If there is voltage check for continuity in the yellow and white yellow wires between the ICU and the ignition pulse generator referring to the Wiring Diagrams at the end of Chapter 9 If there is no continuity trace the fault and repair or replace the wiring as necessary If there is continuity the ICU could be faulty and should be taken to a Honda dealer for assessment Fault code indicated by flash pattern 48 If the two short two long flash pattern has been indicated during the fault diagnosis procedure remove the fairing see Chapter 8 Trace the wiring from the receiver on the ignition switch and disconnect it at the connector Using a voltmeter connect the positive probe to the yellow red wire terminal on the loom side of the receiver connector and the negative probe to earth ground Turn the ignition ON there should be approximately 5 volts present If there is no voltage check for continuity in the yellow red wire between the ICU and the receiver and repair or replace the wiring if there is no continuity 49 If there is 5 volts present check for continuity to earth ground in the green orange wire and repair or replace the wiring if there is no continuity 50 If the wiring is good using a voltmeter connect the positive probe to the pink wire terminal on the loom side of the receiver connector and the negative probe to earth ground Turn the ignition ON there should be approximately 5 volts present If there is the receiver is faulty 51 If there is no voltage check for continuity in the orange blue and pink wires between the ICU and the receiver and repair or replace the wiring if there is no continuity between the connectors or if there is continuity in either to earth ground If the wiring is good the receiver is faulty Replacement 52 To replace the receiver remove the fairing see Chapter 8 Trace the wiring from the receiver on the ignition switch and disconnect It at the connector Undo the screws securing the receiver around the ignition switch and remove the receiver noting how it fits If you don t have the correct tools to easily access the screws follow the procedure for removing the top yoke in the ignition switch replacement Section in Chapter 9 53 To replace the ICU see Section 5 5