Problems Not Detected By Abs Control Unit (Abs Indicator Stays On) - Honda GL1800 Service Manual

Problems Not Detected by ABS Control Unit (ABS
indicator stays on)
1. Check Battery System
Check the battery for charging condition.
Is voltage within standard range?
NO (low or no voltage) – Check the charging
system (section 16).
YES – GO TO STEP 2.
2. ABS Main Fuse No. 13 Inspection
Check the ABS main fuse (No. 13; 5A).
Is the fuse blown?
NO – GO TO STEP 5.
YES – GO TO STEP 3.
3. Short Circuit Inspection Between Fuse Box and
ABS Control Unit
Disconnect the ABS control unit 5P connector
(7). Check for continuity between the Red/blue
terminal of the connector (7) and ground with
the No. 13 fuse removed.
Is there continuity?
NO – Temporary failure (install a spare fuse
and recheck).
YES – Short circuit in the wire between the
fuse box and ABS control unit.
4. Open Circuit Inspection Between Fuse Box and
ABS Control Unit
Install the fuse. Disconnect the ABS control unit
(7). Measure the voltage between the Red/blue
terminal (+) of the connector (7) and ground (–)
with the ignition system turned to "ON."
Is there voltage?
NO – Open circuit in the wire between the
fuse box and ABS control unit.
YES – GO TO STEP 5.
BRAKE SYSTEM (ABS)
(10)
5
6 17
7 18
8 19
9 20
+
10 21
–
11 22
12 23
1 13 24
2 14 25
3 15 26
4 16 27
(7)
(7)
V
16-27