Trunk Opener Unit Can Be Locked But Cannot Be Unlocked With The Transmitter; Trunk Opener Unit Can Be Locked With The Transmitter Although One Of The Lids Is Open; Trunk Opener Unit Can Be Locked And Unlocked With The Transmitter But The Turn Signal Lights Do Not Blink - Honda GL1800 Service Manual

Trunk opener unit can be locked but cannot be
unlocked with the transmitter
1. Remove the trunk lid inner cover and disconnect
the trunk lock control unit 18P white connector
(page 20-46).
2. Lock the trunk opener unit with the ignition key.
Check for continuity between the Black wire ter-
minal and ground.
There should be no continuity.
• If there is no continuity, replace the trunk lock
control unit (page 20-46).
• If there is continuity, check the following:
– lock/unlock switch (page 20-47)
– short circuit in the Black wire
Trunk opener unit can be locked with the
transmitter although one of the lids is open
• Faulty trunk or saddlebag open switch (pages
20-48 and 20-49)
• Faulty open switch diode (page 20-49)
• Open circuit in the Brown/red, Red/white, White/
red and Blue/red wires between the trunk control
unit and open switches
• Loose or poor contact of related connectors
• Faulty trunk control unit
Trunk opener unit can be locked and unlocked with
the transmitter but the turn signal lights do not
blink
Make sure that:
– the turn signal/hazard system functions properly.
– 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. Remove the hazard switch diode (page 20-33).
Check the Pink/white wire for continuity between
the trunk lock control unit and hazard switch
diode.
There should be continuity.
• If there is continuity, check the hazard switch
diode (page 20-33). If the diode is OK, replace
the trunk lock control unit (page 20-46).
• If there is no continuity, check for:
– open circuit in the Pink/white wire
– loose or poor contact of related connectors
LIGHTS/METERS/SWITCHES
8P WHITE CONNECTOR
(viewed from the terminal side)
Pink/white
8P WHITE CONNECTOR
(viewed from the terminal side)
Black
20-45