Power Trunk Lock System Does Not Function With The Transmitter - Honda GL1800 Service Manual

6. Confirm proper operation of each transmitter
with the new codes.
TROUBLESHOOTING
Power trunk lock system does not function with the
transmitter
1. Check for water leakage into the transmitter.
• If there is water
transmitter.
• If there is no water leakage, go to step 2.
2. Replace the battery (CR2025) with a new one and
check if the system
transmitter.
• If the system functions properly, the transmit-
ter is OK.
• If the system does not function, go to step 3.
3. Rewrite the transmitter code (page 20-42) and
check if the system
transmitter.
• If the system functions properly, the transmit-
ter is OK.
• If the system does not function, go to step 4.
4. Register the good known transmitter and check
that the system functions properly.
• If the system functions properly, replace the
transmitter.
• If the system does not function, go to step 5.
5. Remove the trunk lid inner cover and disconnect
the trunk lock control unit 18P white connector
(page 20-46).
Check for continuity between the Green wire ter-
minal and ground.
There should be continuity at all times.
• If there is continuity, go to step 6.
• If there is no continuity, check for an open cir-
cuit in the Green wire.
6. Measure the voltage between the Red/yellow
wire terminal (+) and ground (–).
There should be battery voltage at all times.
• If there is battery voltage, replace the trunk
lock control unit (page 20-46).
• If there is no voltage, check the following:
– blown No. 22 fuse.
– open circuit in the Red/yellow wire.
leakage, replace the
functions with the
functions with the
LIGHTS/METERS/SWITCHES
8P WHITE CONNECTOR
(viewed from the terminal side)
Green
Red/yellow
8P WHITE CONNECTOR
(viewed from the terminal side)
20-43