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Fault Code Nos.
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Fault Code No.: 19 Diagnostic Code No.: 20
Item: Sidestand switch: a break or disconnection of the (Blue/Black) lead of the ECU (engine control unit) is
detected.
detected.
Fail-Safe System: Unable to Start Engine | Unable to Drive Vehicle
Indicated: Sidestand switch
• "ON" (sidestand retracted)
• "OFF" (sidestand extended)
• "ON" (sidestand retracted)
• "OFF" (sidestand extended)
Procedure: Extend and retract the sidestand (with the transmission in gear).
Probable Cause of Confirmation of Service
Item Malfunction and Check Maintenance Job Completion
Item Malfunction and Check Maintenance Job Completion
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1
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Connection of sidestand
switch coupler. Check the locking condition of the coupler. Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the pins). |
Improperly connected
Connect the coupler securely or replace the wire harness. |
Turn the main switch to "ON"
and then extend and retract the sidestand. If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 2 below. |
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2
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Connection of ECU coupler.
Check the locking condition of the coupler. Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the pins). |
Improperly connected
Connect the coupler securely or replace the wire harness. |
Turn the main switch to "ON"
and then extend and retract the sidestand. If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 3 below. |
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3
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Connection of main switch
coupler. Check the locking condition of the coupler. Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the pins). |
Improperly connected
Connect the coupler securely or replace the wire harness. |
Turn the main switch to "ON"
and then extend and retract the sidestand. If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 4 below. |
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4
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Connection of relay unit coupler.
Check the locking condition of the coupler. Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the pins). |
Improperly connected
Connect the coupler securely or replace the wire harness. |
Turn the main switch to "ON"
and then extend and retract the sidestand. If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 5 below. |
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5
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Wire harness continuity.
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Open or short circuit. Replace the wire harness.
Between main switch coupler and relay unit coupler. (Blue/Yellow-Blue/Yellow) Between main switch coupler and joint connector. (Blue/Black-Blue/Black) Between joint connector and ECU coupler. (Blue/Black-Blue/Black) |
Turn the main switch to "ON"
and then extend and retract the sidestand. If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 6 below. |
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6
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Defective sidestand switch.
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Execute the diagnostic
mode. (Code No. 20). Shift the transmission into gear. Sidestand retracted: "ON" Sidestand extended: "OFF" Replace if defective. |
Turn the main switch to "ON"
and then extend and retract the sidestand. If, the Fault Code No. is NOT displayed, then Service is Complete. If however, the Fault Code No. is displayed, then Go To Item 7 below. |
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7
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Malfunction in ECU.
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Replace the ECU.
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