'61HN252' by American Honda Motor Co. - Page 515 of 540
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
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3/9/2008 11:30 PM
[2005-2008] [TRX500 FA/FGA]
HONDAMATIC
7. Meter Line Short Circuit Inspection
Connect the ECM 21P (Gray) connector.
Put the gear shift lever in the D range and the
mode select switch at ESP.
Turn the ignition switch ON.
Bu/W
Check for continuity between each of the wire
P/Bu
Y/O
terminals of main harness side combination
meter 4P (Yellow) and 14P (Gray) connector and
the frame ground.
Is there continuity at the Blue wire and Light
Bu
Lb
blue wire only?
NO
Faulty combination meter
YES
Faulty ECM After replacement, per-
form initial setting procedure
(page 24-
6)
GEAR POSITION SWITCH
INSPECTION
Turn the ignition switch OFF.
ECM 21P (GRAY) CONNECTOR
Disconnect the ECM 21P (Gray) connector.
Check for continuity between each gear position
switch wire terminal of the ECM connector and
ground.
There should be continuity only at the terminals that
correspond to the gear positions shown below, and
there should be no continuity at the other terminals.
You must test each of four wires in each gear posi-
tion. Therefore, you need to make 16 tests, between
each gear position switch wire terminal and ground.
WIRE
'05, '06 shown:
OLOR
GEAR
C
Lb/W
Lg/R
Gr
GND
P
OSITION
L
OW
1
2
3
5
4
DRIVE
6
7
1
NEUTRAL
R
1
10
11
82
EVERSE
W
93
14
15
6
If the continuity is abnormal, disconnect the gear
4P (NATURAL) CONNECTOR
position switch 4P (Natural) connector, and check
for continuity between each terminal of the switch
side 4P connector and ground in the same manner
as the previous step.
· If the continuity at the ECM is abnormal and con-
tinuity at the 4P connector is normal, check for
open or short circuit, or loose or poor connector
contact.
· If the both continuities are abnormal, replace the
gear position switch.
24-37
