Honda GL1800 Service Manual page 532

5. Modulator Motor Ground Circuit Inspection at
ABS Control Unit
Check for continuity between the Green terminal
of the connector (9) and ground.
Is there continuity?
NO – Open circuit in the Green wire (ground).
YES – GO TO STEP 6.
6. Modulator Motor Short Circuit Inspection at
Modulator Connector
Disconnect the front modulator control motor
connector (2). Check for continuity between the
Brown/yellow terminal of the connector (2) and
ground, and between the Green/yellow terminal
of the connector (2) and ground.
Is there continuity?
NO – GO TO STEP 8.
YES – Short circuit in the wire between the
ABS control unit and modulator (control
motor).
7. Open Circuit Inspection Between ABS Control
Unit and Front Modulator
Short the Brown/yellow and Green/yellow termi-
nal of the connector (9) with a jumper wire.
Check for continuity between the Brown/yellow
and Green/yellow terminals of the connector (2).
Is there continuity?
YES – GO TO STEP 8.
NO – Open circuit in the wire between the
ABS control unit and modulator (control
motor).
BRAKE SYSTEM (ABS)
(9)
(2)
(9)
(2)
16-15