Dtc 24-1 (Shift Control Motor Drive Circuit) - Honda TRX500FM Service Manual

ELECTRIC SHIFT PROGRAM (ESP: FE/FPE models)
DTC 24-1 (SHIFT CONTROL MOTOR
DRIVE CIRCUIT)
NOTE
Before starting the troubleshooting, check for loose
or poor contact of the control motor 2P (Black) and
PCM 5P (Black) connectors, and recheck the DTe
(page 23-14).
1. PCM Motor Power Input Line Inspection
Turn the ignition switch OFF.
Disconnect the PCM 5P (Black) connector (1).
I\,
Measure the voltage between the wire harness side [1]
peM 5P (Btack) connector terminal and ground.
-r""y-,
Connection: C4 (+) - Ground (- )
Is there battery voltage '?
YES - GO TO STEP 2.
NO - ' Blown main fuse 2 (30 A).
Open circuit in the Redlwhite or Red C4
wire .
2. PCM Motor Power Ground Line Inspection
Check for continuity between the wire harness side , - -- -- - - - - - - - - - - - - - - ,
PCM 5P (Black) connector [lJ terminal and ground. [1]
23-20
Connection : C5 - Ground
Is
there continuity'?
YES - GO TO STEP 3.
NO - Open circuit In the Green wire.
3. Control Motor Line Open Circuit Inspection
Disconnect the control motor 2P (Black) connector
r
Check for continuity between the wire harness side
control motor 2P (Black) connector and PCM 5P
(Black) connector 12jterminats.
Connection: C1 - Red
C2 - Green
Is
there continuity'?
YES - GO TO STEP 4.
NO
Open circuit in the Red wire .
• Open circuit in the Green wire.
C5
C2
C1
111