Honda TRX680FA Service Manual page 321

DRIVETRAIN SYSTEM
Be careful not to
bend the connector
terminals.
When
connecting the
PCM 33.P
connectors,
check that
there is no dirt
and oil in the
connector.
DTC 41-1 (GEAR POSITION SWITCH
CIRCUIT)
• Before starting the troubleshooting, check for
loose or poor contact on the gear position switch
3P (Natural) connector and PCM 33P (Black) con-
nector and then recheck the DTC.
1. Gear Position Switch Line Inspection at PCM
Connector
Turn the ignition switch OFF.
Disconnect the PCM 33P (Black) connector.
Perform the gear position switch inspection
(page 14-44).
Also check for the short circuit between each
gear position switch terminals.
Is there normal continuity?
NO - GO TO STEP 2.
YES - GO TO STEP 3.
2. Gear Position Switch Line Inspection at the
Connector
Disconnect the gear position switch connector.
Check for continuity between the gear position
switch 3P (Natural) connector of the switch side
and ground (page 14-44).
Also check for the short circuit between each
gear position switch terminals.
Connection: Light green/red - Ground'
Gray - Ground
Light blue/white - Ground
Is there normal continuity?
NO - Faulty gear position switch.
YES - • Open or short circuit in the Light
green/red wire.
• Open or short circuit in the Light
blue/white wire.
• Open or short circuit in the Gray
wire.
3. Failure Reproduction
Connect the PCM and gear position switch con-
nectors.
Clear the DTC, turn the ignition switch ON, select
the gear position "D", "R" and check the current
DTC.
fe the DTC 41-1 indicated?
NO - Intermittent failure.
YES - Replace the PCM with a new one and
recheck.
GEAR POSITION SWITCH 3P (NATURAL)
CONNECTOR (Switch side of female terminal)
U if U
Lb/W Gr Lg/R
14-39