Hstc (Honda Selectable Torque Control) System Inspection - Honda CRF1000 Shop Manual

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HSTC (Honda Selectable Torque
Control) SYSTEM
• The HSTC system utilizes various PGM-FI/ABS
components. If any of the related items and/or circuit
has problem, the system will fail and the torque
control indicator remains on in order to notify the
rider of the problem.
• If any DTC or ABS problem code is indicated, repair
the malfunction part(s) first.
SYSTEM INSPECTION
PRE-START SELF-DIAGNOSIS PROCEDURE
1. Turn the ignition switch ON and engine stop switch
" ".
2. The torque control indicator turns ON.
3. Start the engine.
4. Test
motorcycle speed to approximately 10 km/h (6 mph).
5. The system is normal if the indicator goes off.
TORQUE CONTROL INDICATOR REMAINS ON
AFTER THE PRE-START SELF DIAGNOSIS IS
COMPLETED, OR IT TURNS AND REMAINS ON
WHILE RIDING.
Check the following:
– No PGM-FI DTC indicated (page 4-9)
– No DCT DTC indicated (CRF1000D) (page 13-10)
– No ABS DTC (page 20-8)
– Combination meter TXD line (page 22-14)
If all of the above items are normal, replace the
combination meter (page 22-12) and recheck the torque
control indicator.
TORQUE CONTROL CAN NOT BE TURNED OFF OR
CAN NOT CHANGE LEVEL BY PRESSING THE
TORQUE CONTROL SWITCH
Check the following:
– Yellow and Yellow/white wire between the left
handlebar switch and fuse box 1 (sub fuse ENG
STOP 7.5 A) for open or short circuit.
– Blue/black wire between the left handlebar switch
and ECM/PCM for open or short circuit.
– Left handlebar switch (page 22-23)
If all of the above items are normal, replace the ECM/
PCM (page 4-39) with a new one and recheck.
TORQUE CONTROL SWITCH
INSPECTION
Refer to the left handlebar switch inspection (page 22-
23).
TORQUE CONTROL SWITCH
REMOVAL/INSTALLATION
Refer to the left handlebar switch removal/installation.
– REMOVAL (page 17-4)
– INSTALLATION (page 17-7)
ride the motorcycle and
LIGHTS/METERS/SWITCHES
increase the
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