Honda 2005 FOURTRAX FOREMAN TRX500 TM Service Manual page 415

ELECTRIC SHIFT PROGRAM (ESP/FE model)
3. ECM Power Ground Line Inspection
Check for continuity between the Green wire ter-
minal of the wire harness side connector and
body ground.
te there continuity?
NO - • Check for loose or poor contact of
ground terminal
• Check for open circuit in the Green
wire
YES - GO TO STEP 4.
ECM 5P CONNECTOR
(Viewed from the terminal side)
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i
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4. ECM to Motor Harness Inspection
Disconnect the control motor 2P connector.
Check the Orange and Green/red wires for conti-
nuity between the ECM 5P connector and motor
connector.
Is there continuity?
NO - Repair open circuit in the Orange and/or
Green/blue wire
YES - GO TO STEP 5.
ECM 5P CONNECTOR
CONTROL MOTOR
CONNECTOR
(Viewed from the terminal side)
Orange " " " Green/red
Green/red Orange
5. Control Motor Inspection
Connect a fully charged 12 V battery to the
motor 2P connector terminals.
Does the motor turn?
NO - Faulty motor
YES - GO TO STEP 6.
6. ES System Failure Checking
Connect the ECM and motor connectors.
Check the ES system failure (the gear position
indicator blinks) when turning the ignition switch
from OFF to ON.
Does the gear position indicator blink?
NO - No problem (temporary failure).
YES - Replace the ECM with a known-good
one and troubleshoot again.
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