Buell 2003XB9S, Service Manual

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4-64 2003 Buell XB9S: Fuel System
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Code 23/32 Test (Part 1 of 2)
Is connector connected at the injector?
YES NO
Reconnect and
install airbox.
YES
Disconnect and attach Fuel Injector Test
Lamp. Crank engine. Does lamp flash?
1
Measure resistance of the suspect injector.
Resistance across terminals should be
12.25 ohms? Is it?
Check Terminal 1 (GY wire) on injector
connector to ground. Should be
equivalent to battery voltage after key ON.
Is it?
NO
Attach Breakout Box (HD-42682) to ECM.
If CODE 23, measure resistance between
ECM Pin 5 of [10] (W/Y wire) and
Terminal 2 of front injector connector [84].
If CODE 32, measure resistance between
ECM Pin 8 of [10] (GN/GY wire) and
Terminal 2 of rear injector connector [85].
Is resistance less than 0.5 ohm?
YES
Check for loose or
corroded terminals
in harness. Repair
as necessary.
Replace injector. See
4.41 THROTTLE
BODY.
YES NO NO
Go to Code 23/32
Test (Part 2 of 2)
YES NO
Repair open or
poor connection.
Using Breakout Box, check with test lamp
between ECM [10] Pin 5 (CODE 23) or
ECM [10] Pin 8 (CODE 32) and ECM [10]
Pin 1. Does light flash when cranked?
YES NO
Recheck connections.
Perform 4.7 WIGGLE TEST .
Repair as necessary.
2
2
4
STOP
Replace ECM. See 4.29
ELECTRONIC CONTROL
MODULE .
3
1
7825
7795
7805
7815
7805
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).