Honda NC700XA Service Manual page 383

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DUAL CLUTCH TRANSMISSION (DCT) (NC700XD/SD)
DTC 27-1 (SHIFT DRUM POSITION
MALFUNCTION)
• If the PCM is replaced, perform the following:
– Key Registration Procedure (page 23-6)
– Clutch Initialize Learning Procedure (page 12-120)
1. TR Sensor System Inspection
Check the TR sensor with the HDS pocket tester.
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.
Are the shift control motor and reduction gears
in normal condition?
YES
NO
3. Shift Control Motor Condition Inspection
Remove the shift control motor (page 12-109).
Connect a fully charged 12 V battery [1] to the shift
control motor [2] 2P connector terminals 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 12-115).
Turn the ignition switch ON.
While turning the TR sensor shaft, check the TR
sensor voltage with the HDS pocket tester.
When turning the sensor shaft clockwise:
Voltage increase
When turning the sensor shaft
counterclockwise:
Voltage decrease
Does the voltage vary properly?
YES
NO
12-28
– • About 0 V: See DTC 51-1 (page 12-40).
• About 5 V: See DTC 51-2 (page 12-41).
– 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
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