Dtc 27-1 (Shift Drum Position Malfunction) - Honda CRF1000 Shop Manual

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DTC 27-1 (SHIFT DRUM POSITION
MALFUNCTION)
1. TR Sensor System Inspection
Check the TR sensor with the MCS.
Is Low voltage (about 0 V) or High voltage (about
5 V) indicated?
YES
NO
2. Shift Control Motor/Reduction gear condition
Check the shift control motor and reduction gears
are installed properly and are not damaged (page
13-71).
Are the shift control motor and reduction gears
in normal condition?
YES
NO
3. Shift Control Motor Inspection
Remove the shift control motor (page 13-71).
Connect a fully charged 12 V battery [1] to the shift
control motor [2] 2P connector to check the motor
operation.
Change the battery connection to check the reverse
operation.
Does the shift control motor turn in both
directions?
YES
NO
4. TR Sensor System Inspection
Remove the TR sensor with the connector
connected (page 13-79).
Turn the ignition switch ON.
While turning the TR sensor shaft, check the TR
sensor voltage with the MCS.
When turning the shaft clockwise:
Voltage increase
When turning the shaft counterclockwise:
Voltage decrease
Does the voltage vary properly?
YES
NO
5. TR Sensor Condition Inspection
Check that the TR sensor is installed properly and is
not damaged.
Is the TR sensor in normal condition?
YES
NO
DUAL CLUTCH TRANSMISSION (DCT) (CRF1000D)
– • About 0 V: See DTC 51-1 (page 13-34).
• About 5 V: See DTC 51-2 (page 13-36).
– GO TO STEP 2.
– GO TO STEP 3.
– Install the shift control motor and reduction
gears properly or replace faulty parts.
– GO TO STEP 4.
– Faulty shift control motor
– GO TO STEP 5.
– Faulty TR sensor
– GO TO STEP 6.
– Install the TR sensor properly or replace it
(page 13-79).
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