Honda TRX680FA Service Manual page 289

DRIVETRAIN SYSTEM
2. A/T Clutch Pressure Control Solenoid Operation
Check
Remove the valve body cover (page 14-47).
Disconnect the A/T clutch pressure control sole-
noid 2P (Black) connector.
Connect a 12 V battery to the solenoid terminals.
It should operate (sounds) when the battery is
connected.
Does the solenoid operate?
NO - Faulty A/T clutch pressure control sole-
noid.
YES - Test-ride the vehicle and check the gear
position indicator (page 14-44).
3. Vehicle Test-riding
Accelerate the vehicle with the mode select
switch at ESP. Check the acceleration perfor-
mance with the transmission in the 2nd and 3rd
ranges.
Does the vehicle accelerate with the transmis-
sion in 2nd and 3rd?
YES - Faulty 1st shift clutch system (page I4-
86)
NO - Hydraulic circuit malfunction is the
likely cause. Check the oil pressure
(page 14-12).
Excessive Acceleration Shock
1. Vehicle Test-riding
Accelerate the vehicle with the mode select
switch at ESP. Check for acceleration shock with
the transmission in the 2nd and 3rd ranges.
Is there acceleration shock with the transmis-
sion in 2nd and 3rd?
NO - Faulty 1st shift clutch system (page 14-
66)
YES - Hydraulic circuit malfunction is the
likely cause. Check the oil pressure
(page 14-12).
2P BLACK CONNECTOR
14-7