Dtc 27-1 (Shift Drum Position Malfunction) - Honda CTX700N/ND Service Manual

DUAL CLUTCH TRANSMISSION ( DCT ) ( CTX 700 D / ND )
DTC 27
- 1 ( SHIFT DRUM POSITION
MALFUNCTION )
NOTE :
If the PCM is replaced , perform the Clutch Initialize
Learning Procedure ( page 12
-
81 )
.
1
.
TR Sensor System Inspection
Check the TR sensor with the MCS
.
Is Low voltage ( about OV ) or High voltage ( about
5 V ) indicated ?
YES
-
• About 0 V : See DTC 51
-
1 ( page 12
-
35 )
.
• About 5 V : See DTC 51
-
2 ( page 12
- 36 )
.
NO
-
GO TO STEP 2
.
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
-
GO TO STEP 3
.
NO
-
Install the shift control motor and reduction
gears properly or replace faulty parts .
3
.
Shift Control Motor Condition Inspection
Remove the shift control motor ( page 12
-
70 ) .
Connect a fully charged 12 V battery [ 1 ] to the shift
control
motor [ 2 ] 2 P 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
-
GO TO STEP 4
.
NO
-
Faulty shift control motor
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-
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[ 2 ]
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4
.
TR Sensor System Inspection
Remove the TR sensor with the connector
connected ( page 12
-
76 ) .
Turn the ignition switch ON .
While turning the TR sensor shaft , check the TR
sensor voltage with the MCS
.
When turning the sensor shaft clockwise :
Voltage increase
When turning the sensor shaft
counterclockwise :
Voltage decrease
Does the voltage vary properly ?
YES
-
GO TO STEP 5 .
NO
-
Faulty TR
sensor
t
!
.
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