Page 498 - 2019 SHOP MANUAL CRF1000/A/D
P. 498

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      ANTI-LOCK BRAKE SYSTEM (ABS) (CRF1000A/D)
                      6. Power Input Line Open Circuit Inspection
                         Install the sub fuse ABS MAIN 7.5 A.
                         Turn the ignition switch ON.               [1]
                         Measure the voltage between the wire harness side
                         18P (Black) connector [1] and ground.
                         TOOL:
                         Test probe            07ZAJ-RDJA110
                         CONNECTION: 7 (+) – Ground (–)                               7
                         Is there battery voltage?
                         YES  – Faulty ABS modulator
                         NO   – Open circuit in Red/green wire




      DTC TROUBLESHOOTING



                       • Perform  inspection with  the ignition switch OFF,
                        unless otherwise specified.
                       • All connector diagrams in the troubleshooting are
                        viewed from the terminal side.
                       • When the ABS modulator assembly is detected to be
                        faulty,  recheck the  wire harness and connector
                        connections closely before replacing it.
                       • After  diagnostic  troubleshooting, erase the DTC
                        (page 20-6).
                        Then test-ride the motorcycle to check that the ABS
                        indicator operates normally during pre-start self-
                        diagnosis (page 20-5).


                      DTC 1-1, 1-2, 2-1, 4-1 or 4-2 (Front
                      Wheel Speed Sensor Circuit/Front
                      Wheel Speed Sensor/Front Pulser
                      Ring/Front Wheel Lock)


                       • The ABS indicator might blink under unusual riding
                        conditions (page 20-8). This is temporary failure.
                        Erase the DTC (page 20-6).
                        Then test-ride  the motorcycle  above 10 km/h (6
                        mph) to check  that the ABS indicator operates
                        normally (page 20-5).
                       • If DTC 4-1  is indicated, check the front brake for
                        drag.
                      1. Front Wheel Speed  Sensor Line Short  Circuit
                         Inspection (at sensor side)
                         Turn the ignition switch OFF.
                         Disconnect the front wheel speed sensor 2P (Black)        [1]
                         connector (page 20-20).
                         Check for continuity between each terminal of the
                         sensor side 2P (Black) connector [1] and ground.
                         CONNECTION: White – Ground                                W        Bu
                                      Blue – Ground
                         Is there continuity?
                         YES  – Faulty front wheel speed sensor
                         NO   – GO TO STEP 2.





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