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No ECM Power
CONDITION: Sidestand up, key ON and transmission in neutral
Remove seat and check ignition fuse.
Is fuse OK?
YES
Attach Breakout Box (HD-42682) to
1
ECM. Check for 12 volts on ECM
connector [10] Pin 1 (+) and Pin 2 (-).
Voltage present?
YES
Replace ECM. See
4.29 ELECTRONIC
CONTROL
MODULE.
4-34
NO
Replace fuse.
Check for continuity to
ground on [10] Pin 2.
NO
Continuity present?
YES
Check for 12 volts
7271
on ignition relay
Terminal 87 (GY).
Voltage present?
YES
Repair open between
ECM and ignition relay.
7270
NO
Repair open.
7272
Check for continuity to
ground on ignition relay
NO
Terminal 85 (TN/W).
Continuity present?
YES
7273
Check for 12 volts
on ignition relay
Terminal 30 (GY/O).
Voltage present?
YES
Check for 12 volts
on ignition relay
Terminal 86 (W/BK).
Voltage present?
YES
Replace ignition relay.
See
7.5 STARTER
INTERLOCK.
YES
Repair open on W/BK
wire between connector
[22] and ignition relay.
STOP
NO
Diagnose ignition interlock
circuit. See
7.5 STARTER
INTERLOCK
and continue
until problem is solved.
NO
Repair open on
(GY/O) wire
between ignition
relay and fuse.
7274
NO
Check for 12 volts
on right handlebar con-
nector [22] GY/O wire.
Voltage present?
7276
NO
Replace handlebar
switch assembly.
7278
7277
2002 Buell X1: Fuel System
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Troubleshooting
