Page 143 - 2019 SHOP MANUAL CRF1000/A/D
P. 143

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                                                                                                   PGM-FI SYSTEM
                               DTC 67 (FRONT WHEEL SPEED SENSOR SIGNAL) (CRF1000A/D)
                                                                                       ECM/PCM



                                         ABS MODULATOR


                                                              Bu/Y








                               Probable cause
                                • Open or short circuit in the Blue/yellow wire between
                                 the ABS modulator and ECM/PCM
                                • Faulty ABS modulator
                                • Faulty ECM/PCM
                               DTC 67-1 (FRONT WHEEL SPEED SENSOR
                               SIGNAL)
                               1. DTC Recheck
                                 Erase the DTC (page 4-6).
                                 Test-ride the motorcycle  above  20 km/h (12 mph)
                                 for more than 20 seconds.
                                 Stop the engine.
                                 Check the DTC with the MCS.
                                 Is DTC 67-1 indicated?
                                 YES   – GO TO STEP 2.
                                 NO    – Intermittent failure
                               2. ABS DTC Check
                                 Check the ABS DTC (page 20-6).
                                 Does the ABS modulator have any DTC?
                                 YES   – Follow the ABS DTC index (page 20-8).
                                 NO    – GO TO STEP 3.
                               3. Front Wheel Speed  Sensor Signal Output Line
                                 Open Circuit Inspection
                                 Turn the ignition switch OFF.
                                                                                         [1]            [2]
                                 Disconnect the following:
                                 – ABS modulator 18P (Black) connector (page 20-
                                    7)
                                 – ECM/PCM 33P (Black) connector (page 4-39)
                                 Check for continuity between the wire harness side
                                 18P (Black)  connector [1] and 33P (Black)
                                 connector [2].
                                 TOOL:                                                Bu/Y                  B17
                                 Test probe             07ZAJ-RDJA110

                                 Connection: Blue/yellow – B17
                                 Is there continuity?
                                 YES   – GO TO STEP 4.
                                 NO    – Open circuit in the Blue/yellow wire







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