Complete Electrical System Service Manual and Diagrams including exploded views and service procedures for the 2007 Harley Davidson Dyna FXDSE Screamin' Eagle Dyna, FXD Dyna Super Glide, Harley-Davidson FXDB Dyna Street Bob, FXDL Dyna Low Rider, FXDC Dyna Super Glide Custom and 2007 Harley-Davidson FXDWG Dyna Wide Glide Motorcycle. Save thousands fixing, maintaning and repairing your chopper.
8.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.2 Bulb Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
8.3 Electrical Caddy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
8.4 Electronic Control Module (ECM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8.5 Crank Position Sensor (CKP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
8.6 Spark Plug Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
8.7 Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
8.8 Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
8.9 Ignition Switch/Fork Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
8.10 Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
8.11 Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
8.12 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
8.13 Battery Tray and Battery Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
8.14 Headlamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
8.15 Tail Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
8.16 Turn Signals/Running Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31
8.17 TSM/TSSM/HFSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
8.18 Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-37
8.19 Fuel Gauge Sender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-41
8.20 Instruments: FXDWG/FXDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45
8.21 Instruments: FXDL, FXDB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46
8.22 Instruments: FXD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
8.23 Vehicle Speed Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
8.24 Indicator Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
8.25 Neutral Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-54
8.26 Oil Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-55
8.27 Rear Stoplight Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-56
8.28 Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
8.29 Active Exhaust Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
8.30 Main Wiring Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-60
8.31 Handlebar Switch Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
8.32 Right Handlebar Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-68
8.33 Left Handlebar Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-75
The crank position sensor is a variable reluctance
(VR) sensor that generates an AC signal by sensing
the passing of the 30 teeth machined in the left side flywheel.
Two consecutive teeth are missing in the flywheel to establish
a reference point. The crank position sensor sends a signal to
the electronic control module which is used to reference
engine position (TDC) and engine speed.
The electronic control module (ECM) is mounted in the electrical
caddy. Refer to the DYNA Models Electrical Diagnostic
Manual for information on the function and testing of the electronic
control module.
Resistor-type high-tension spark plug cables have a carbonimpregnated
fabric core, instead of solid wire, for radio noise
suppression and improved reliability of electronic components.
Use the exact replacement cable for best results.
The fuse block is under the electrical caddy cover. The block
contains eight (nine on HDI models) 15 ampere replaceable
fuses. All models utilize a 40 ampere main fuse as well as two
spare 15 ampere fuses.
Dyna model ignition/light/key switches are non-repairable. If a
switch is damaged, it must be replaced. Key switch functions
and locations are listed in Table 8-2.
Three different procedures may be performed to provide a
good indicator of battery condition: a voltage test, a conductance
test, or a load test.
A battery may be tested, whether fully charged or not, via
conductance test. In order to perform a load test, however,
the battery must be fully charged.
The use of any other headlamp bulb, other than what is
specified, could result in damage to the electrical system
or battery discharge.
If either headlamp bulb filament burns out, the bulb must be
discarded and a
new
bulb installed. Use only direct replacement
Dyna Glide models are equipped with a tail lamp that uses a
mini harness and circuit board to simplify replacement.
The FXDWG uses a similar type assembly, but the lens and
base are oriented 180 degrees different from the other models
and there is no chrome taillamp bezel. The FXDWG also
uses a different mini-harness than the other models.
On FXDWG and FXDB models, the turn signal wiring is
routed through the lower switch housings. On FXDWG models,
the turn signal wires are routed through the handlebars.
See 2.27 HANDLEBARS FXDWG or 8.31 HANDLEBAR
