Trunk Lock Control Unit Removal/Installation; Horns Do Not Sound When The “Call” Button Is Pushed; Trunk Lid Cannot Be Opened With The Transmitter - Honda GL1800 Service Manual

LIGHTS/METERS/SWITCHES
Horns do not sound when the "CALL" button is
pushed
Make sure that:
– the horns sound when the horn switch is pushed
with the ignition switch is turned to "ON" or
"ACC."
– the ignition switch is turned to "OFF" or "LOCK."
1. Remove the trunk lid inner cover and disconnect
the trunk lock control unit 18P white connector
(page 20-46).
2. Ground the Pink wire terminal with a jumper
wire.
The horns should sound.
• If the horns sound, replace the trunk lock con-
trol unit (page 20-46).
• If the horns do not sound, check the following:
– HORN (CALL) relay (page 20-16)
– open circuit in the Pink, Red/yellow and

Trunk lid cannot be opened with the transmitter

• Ignition switch is turned to "ON" or "ACC"
• Faulty trunk lid opener actuator (page 20-47)
• Open circuit in the Blue wire between the trunk
control unit and opener actuator
• Open circuit in the Green wire between the
opener actuator and ground terminal
• Loose or poor contact in related connectors
• Faulty trunk control unit
Trunk and saddlebag lid open indicator does not
function when one of the lids is open
• Faulty trunk or saddlebag open switch (pages
20-48 and 20-49)
• Open circuit in the following wires:
– Brown/red wire (for the trunk lid)
– White/red and Brown/red wires (for the right
saddlebag)
– Blue/red and Brown/red wires (for the left
saddlebag)
TRUNK LOCK CONTROL UNIT
REMOVAL/INSTALLATION
Open the trunk lid.
Remove the four screws and two trunk strikers.
Remove the 15 tapping screws and trunk lid inner
cover.
Disconnect the 18P white connector from the trunk
lock control unit.
Remove the two screws and control unit from the
inner cover.
Install the trunk lock control unit in the reverse order
of removal.
20-46
Light green wires
8P WHITE CONNECTOR
(viewed from the terminal side)
RUNK LID INNER COVER
CONNEC OR
Pink
S RIKERS
CON ROL UNI