Name: Buell 2007 LIGHTNING
Brand: Buell
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2007 Buell Lightning: Fuel System 4-71

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TROUBLE CODES 24 AND 25 4.23

GENERAL

Front Ignition Coil (Code 24)

And Rear Ignition Coil (Code 25)

A Code 24 or 25 will set if the ignition coil rise time is out of

range. This could occur if there is an open coil or loss of

power to the coil. If both codes are set, it is likely a coil power

failure or a coil failure.

See Figure 4-50. The coil receives power from the ignition

relay at coil pin B (3) at the same time that the fuel pump and

injectors are activated.

DIAGNOSTICS

Diagnostic Notes

The reference numbers below correlate with the circled num-

bers on the Code 24/25 ﬂow charts.

1. Use HARNESS CONNECTOR TEST KIT (Part No. HD-

41404), purple pin probes and patch cord.

2. Connect BREAKOUT BOX (Part No. HD-42682) to ECM.

See 4.6 BREAKOUT BOX.

3. See Figure 4-51. Plug IGNITION COIL CIRCUIT TEST

ADAPTER (Part No. HD-44687) and FUEL INJECTOR

TEST LAMP (Part NO. 34730-2C) INTO Breakout Box.

Note that cranking the engine with test lamp in place of

the ignition coil can sometimes cause a code 24 or 25.

This condition is normal and does not by itself indicate a

malfunction. Codes must be cleared if this condition

occurs.

Figure 4-50. Ignition Coil

Figure 4-51. Testing Ignition Coil Connectors

1. Front cylinder post

2. Coil Pin A (rear cylinder)

3. Coil Pin B (12 VDC)

4. Coil Pin C (front cylinder)

5. Rear cylinder post

2 3

b0993x4x

10561

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Buell 2007 LIGHTNING Specifications

General