XVS95CE Fault Code 42-2

Fault Code Nos.

Fault Code No.: 42-2 Diagnostic Code No.: 21

Item: Neutral switch: open or short circuit is detected.

Fail-Safe System: Able to start engine | Able to Drive Vehicle

Indicated: Neutral
• "ON" (when the transmission is in neutral)
• "OFF" (when the transmission is in gear or the clutch lever released)

Procedure: Shift the transmission.

Probable Cause of Confirmation of Service
Item Malfunction and Check Maintenance Job Completion

Locate the malfunction.

Execute the diagnostic
mode. (Code No. 07).

Rotate the rear wheel by
hand and check that the indicated value increases.

Execute the diagnostic
mode. (Code No. 21).

When the transmission is in neutral: "ON".

When the transmission is in gear with the clutch lever released: "OFF".

When the transmission is in gear with the clutch lever squeezed and the sidestand retracted: "ON"

If the value does not increase, then go to item 2 in Fault Code No. 42-1, for the speed sensor.

If it is an Incorrect indication, go to item 2.

If it is an Incorrect indication, go to item 2 in Fault Code No. 42-3 for the clutch switch.

Connection of neutral 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.

Execute the diagnostic mode. (Code No. 21).

When the transmission is in
neutral: "ON"

When the transmission is in
gear with the clutch lever released: "OFF"

If it is a correct indication, go to
item 9.

If however, it is an Incorrect indication, then go to
item 3.

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.

Wire harness continuity.

Open or short circuit.

Replace the wire harness.

Between neutral switch connector and sub-wire harness coupler.
(Sky Blue-Sky Blue)

Between sub-wire harness
coupler and relay unit coupler.
(Sky Blue-Sky Blue)

Between relay unit coupler and ECU coupler.
(Black/Yellow-Black/Yellow)

Defective relay unit.

Check the relay unit.

Defective neutral switch.

Check the neutral switch.

Faulty shift drum (neutral detection area).

Malfunction.

Replace the shift drum assembly.

Malfunction in ECU.

Replace the ECU.

Delete the fault code.

Turn the main switch to "ON" and then rotate the rear wheel by hand.

Start the engine, and input the vehicle speed signals by operating the vehicle at 20 to 30km/h (19mph).

Check that the fault code
number is not displayed.