Harley Davidson 2008 Sportster Models. Electrical Diagnostics Manual

Initial Diagnostic Check (Part 1 of 3)

Does Engine

start?

YES.

NO.

Starts and runs.

Starts, then stalls.

Cranks, but will not start.

Engine will not crank.

Check for diagnostic trouble

See 4.12 STARTS,

See 4.10 ENGINE CRANKS,

See 1.2 STARTING

codes (DTCs). See 3.11

THEN STALLS.

BUT WILL NOT START.

SYSTEM DIAGNOSIS.

SPEEDOMETER

SELF DIAGNOSTICS.

DTCs found?

YES

Unable to enter

No DTCs

diagnostic mode.

displayed.

With ignition switch OFF, press and

For a list of symptoms that

Refer to applicable DTC priority

release trip odometer reset switch.

may not set diagnostic

chart. All DTCs are listed in Table

Does odometer display appear with

trouble codes, refer to

3-5. DTCs are listed by priority.

backlighting?

Table 3-6.

YES

Check for continuity to ground at

Breakout Box terminal “7” (Black). Wiggle

harness during continuity check.

STOP

Continuity present?

Go to Initial Diagnostic

Check (Part 2 of 3).

YES

Locate and

Check for battery voltage at Breakout Box

repair open

terminal “5” (Black) while wiggling harness.

between

Battery voltage continuously present?

terminal “7”

and ground.

YES

With ignition switch OFF and speedometer

Locate and

connector [39] disconnected, check continuity

repair open

between Breakout Box terminals “8” and “11” (Black).

between

Is continuity present when trip odometer reset

terminal “5”

switch is depressed and infinity when released?

and

battery fuse.

YES

Replace

Replace trip odometer

Speedometer.

reset switch.

fc01123_en

2008 Sportster Diagnostics: TSM/HFSM 3-19

Initial Diagnostic Check (Part 2 of 3)

Continued from Initial Diagnostic Check (Part 1 of 3).

Turn ignition switch ON, is odometer backlight present?

YES

Perform “WOW” test.

See 3.11 SPEEDOMETER SELF DIAGNOSTICS.

The following features should be functional

Replace Speedometer.

1) backlight should illuminate

2) needle should sweep its full range of motion

3) LED’s should illuminate:

• check engine

• battery

• security (all models)

4) LED’s that may illuminate:

• low fuel

• cruise (although not cruise equipped)

Are all features functional?

YES

Turn Ignition Switch to ACC.

Is backlight present?

With ignition switch turned to

IGNITION, check for battery voltage

at terminal “1” of Breakout Box. Battery

voltage present?

YES

Check for battery voltage at

YES

Breakout Box terminal “6” (Black). Is

battery voltage present?

Is instrument

Replace Speedometer.

fuse good?

YES

Locate and repair open

Locate and repair

Is accessory

between terminal “1” of

Replace Speedometer.

source of fault.

fuse good?

connector [39] and

Replace fuse.

instrument fuse.

YES

Locate and repair open

Locate and repair

on (O/W) wire between

source of fault.

terminal “6” of connector

Replace fuse.

[39] and accessory fuse.

STOP

fc01124_en

Go to Initial Diagnostic

Check (Part 3 of 3).

3-20 2008 Sportster Diagnostics: TSM/HFSM

Initial Diagnostic Check (Part 3 of 3)

Continued from Initial Diagnostic Check (Part 2 of 3).

Is problem intermittent?

YES

Speedometer inoperative

Tachometer Inoperative

(no vehicle speed).

(no engine speed).

Repeat Diagnostic

Check while wiggling

harnesses.

Remove and inspect

Intermittent present?

See 2.4 SPEEDOMETER/

Vehicle Speed Sensor.

Debris present?

TACHOMETER.

YES

Locate and repair

No trouble found.

Check for damaged wiring/loose

intermittent.

Remove debris. Reinstall

connection between Vehicle

Vehicle Speed Sensor.

Speed Sensor and ECM.

Is wiring damage/ loose

connection present?

YES

Locate and repair

Replace

source of fault.

Speedometer.

fc01125_en

2008 Sportster Diagnostics: TSM/HFSM 3-21

SPEEDOMETER SELF DIAGNOSTICS

3.11

GENERAL

ed02814

The speedometer is capable of displaying and clearing

speedometer, tachometer, TSM/HFSM, and Electronic Control

Module (ECM) Diagnostic Trouble Codes (DTCs) (diagnostic

mode).

ACC.

DIAGNOSTICS

Diagnostic Tips

•

For a quick check of speedometer function, a "WOW" test

can be performed. See Figure 3-12 and Figure 3-13. Press

and hold trip odometer reset switch then turn Ignition

Switch ON. Release trip odometer reset switch. See

Figure 3-14. Background lighting should illuminate, gauge

needles should sweep their full range of motion, and

indicator lamps (battery, security, low fuel, and check

engine) should illuminate.

1. Ignition OFF

2. Accessory (ACC) ON

•

If speedometer fails "WOW" test, check for battery, ground,

3. Ignition ON

ignition, trip odometer reset switch, and accessory wiring

to speedometer. If any feature in the speedometer is non-

Figure 3-13. Ignition Switch

functional, see

2.2 INITIAL DIAGNOSTIC CHECK:

SPEEDOMETER.

Diagnostic Notes

ed02830

Each reference number below correlates to a circled number

on the flow chart(s).

1. To exit diagnostic mode, turn Ignition Switch OFF.

2. To clear DTCs for the selected module, press the trip

odometer reset switch for more than 5 seconds when a

DTC is displayed. This procedure will clear all DTCs for

the selected module.

ed02816

1. Sixth gear indicator (not used)

2. Check engine lamp

3. Low fuel lamp

4. Battery lamp

Figure 3-12. Trip Odometer Reset Switch (Typical)

5. Security lamp (key icon)

Figure 3-14. Speedometer

3-22 2008 Sportster Diagnostics: TSM/HFSM

Speedometer Self Diagnostics

While holding trip odometer reset

switch in, turn ignition switch to

IGNITION.

Make sure Engine Stop Switch is in

RUN position.

Release trip odometer reset switch.

Does “diag” appear?

YES

Press and release trip odometer reset switch.

“PSSPtb” appears.

To display DTCs for the

ECM, press and hold trip

See 2.2 INITIAL

”P” flashing.

odometer reset switch for more

DIAGNOSTIC

than 5 seconds.

CHECK: SPEEDOMETER.

To choose TSM/

TSSM/HFSM, press

and release trip odometer

reset switch.

To display DTCs for

TSM/TSSM, press and hold trip

Device

”S” flashing.

odometer reset switch for more

response?

than 5 seconds.

To choose Speedometer,

press and release trip

“no rsp” displayed. See applicable code from

odometer reset switch.

other modules. Models not equipped with a

tachometer or ABS will display “no rsp” normally.

To display DTCs for

speedometer, press and

YES

If “no rsp” displayed on odometer on tachometer

”SP” flashing.

hold trip odometer reset

equipped vehicle, See Section 2.4

switch for more than 5

SPEEDOMETER/TACHOMETER.

seconds.

To choose Tachometer,

press and release trip odometer

DTC

reset switch.

“none” displayed.

displayed.

To display DTCs for tachometer,

press and hold trip odometer

”T” flashing.

reset switch for more than 5

Press and release trip

seconds.

odometer reset switch.

Press and release

Are more DTCs displayed?

trip odometer reset

To choose ABS, press

switch. Part number

and release trip odometer

of module will be

reset switch.

displayed.

YES

To display DTCs for

ABS, press and

”b” flashing.

hold trip odometer reset

switch for more

than 5 seconds.

“end” displayed. To clear all DTCs for selected

To choose ECM, press

module hold trip odometer reset switch for more than

and release trip odometer

5 seconds. If DTCs are not to be cleared, Press and

reset switch.

release trip odometer reset switch. Part number of

module will be displayed.

Press and release trip

odometer reset switch again to

continue to next module.

fc01126_en

2008 Sportster Diagnostics: TSM/HFSM 3-23

BREAKOUT BOX: TSM/HFSM

3.12

GENERAL

ed02831

PART NUMBER

TOOL NAME

HD-42682

BREAKOUT BOX

The BREAKOUT BOX (Part No. HD-42682) splices into the

main harness. Used in conjunction with a digital volt/ohmmeter

(DVOM), it allows circuit diagnosis of wiring harness and con-

nections without having to probe with sharp objects.

INSTALLATION

NOTE

For HFSM: Disarm security system, then remove MAXIFUSE

while the system remains disarmed.

1. Remove left side cover and battery. See Service Manual.

2. See Figure 3-15. Reach under battery tray and lift TSM/

1. Main connector [30A]

HFSM from cavity in bottom of tray.

2. Pin 1

3. Pin 12

3. See Figure 3-16. Disconnect harness connector(s) from

4. Antenna connector [208A] (HFSM only)

TSM/HFSM:

Figure 3-16. TSM/HFSM Connector(s)

a. For HFSM: Depress latches on antenna connector

[208B] and remove from antenna connector [208A]

(4).

b. Depress latches on main harness connector [30B]

ed02832

and remove from main connector [30A] (1).

4. Route main harness connector [30B] back down through

cavity and out left side of vehicle under battery tray.

5. For HFSM: Route antenna connector [208B] down through

cavity and out left side of vehicle under battery tray.

6. Reinstall battery.

7. See Figure 3-17. Attach Breakout Box to connectors:

a. Mate gray socket housing on Breakout Box with

TSM/HFSM connector [30A].

b. Mate gray pin housing on Breakout Box with vehicle

harness connector [30B].

8. For HFSM: Mate antenna connector [208B] to HFSM.

ed02825

1. TSM/HFSM

2. Tester harness connectors

3. Vehicle's TSM/HFSM harness connector [30B]

Figure 3-17. Breakout Box: TSM/HFSM

REMOVAL

1. See Figure 3-16. For HFSM: Depress latches on antenna

connector [208B] and disconnect from HFSM antenna

connector [208A] (4).

Figure 3-15. TSM/HFSM Location

3-24 2008 Sportster Diagnostics: TSM/HFSM

2. Disconnect Breakout Box from vehicle:

5. Mate TSM/HFSM main harness connector [30B] to TSM/

HFSM.

a. Depress latches and detach gray Breakout Box socket

connector from TSM/HFSM main harness connector

6. Position TSM/HFSM with connector(s) facing toward rear

[30A] (1).

of vehicle. Lower TSM/HFSM down into cavity in bottom

of battery tray.

b. See Figure 3-17. Detach gray Breakout Box connector

from TSM/HFSM main harness connector [30B] (3).

7. Install battery, MAXIFUSE and left side cover. See Service

Manual.

3. Remove battery. Route TSM/HFSM main harness con-

nector [30B] up through cavity in bottom of battery tray.

NOTE

4. For HFSM:

Vehicle will not start with TSM/HFSM disconnected or incor-

rectly mounted.

a. Route antenna harness connector [208B] up through

cavity in bottom of battery tray.

b. Mate antenna connector [208B] to HFSM.

Table 3-8. TSM/HFSM Connector [30B]

TERMINAL

FUNCTION

TERMINAL

FUNCTION

Battery

Right turn switch input

Ignition

Left turn switch input

Serial Data

Start relay control

Neutral switch

Clutch switch

Left turn feed

Alarm signal

Right turn feed

Ground

2008 Sportster Diagnostics: TSM/HFSM 3-25

FAILS TO DISARM (HFSM ONLY)

3.13

GENERAL

DIAGNOSTICS

If the HFSM does not respond or responds weakly (limited

Diagnostic Tips

range - will not consistently disarm with fob within normal

•

Verify that the hands-free antenna or a cell phone is not

range), follow the flow chart.

within

3.0 in. (80.0 mm) of key fob.

•

Interference from physical surroundings may affect RF

ed02826

transmission. Place fob next to motorcycle or move

motorcycle to a new location and retest.

•

See Figure 3-18. Verify that antenna is in OE location and

that seat has not been replaced with a metal base seat.

•

Check for damage to antenna wire.

•

See Figure 3-19. Verify fob battery (1) voltage is at least

2.9 volts. See 3.26 HFSM MAINTENANCE.

•

Fob serial number (2) is located inside fob. Open fob by

twisting a thin blade in the thumbnail slot between fob

halves.

Diagnostic Notes

Each reference number below correlates to a circled number

on the flow chart(s).

1. After a battery disconnect, the HFSM will not enter the

configuration mode on the first attempt. All attempts to

assign a fob or enter the configuration mode will require

at least two attempts.

Figure 3-18. HFSM and Antenna

ed02051

JOB/TIME CODES

Dealership technicians filing warranty claims should use the

job/time codes printed in bold text underneath the appropriate

repair.

1. Battery

2. Fob serial number

Figure 3-19. Open Fob: HFSM

3-26 2008 Sportster Diagnostics: TSM/HFSM

HFSM Fails to Disarm

Does any assigned fob

work?

YES

Check battery on non-functional fob.

Check for continuity between

Is battery voltage greater

[208B] terminal “1” and end of (Y/BK)

than 2.9 volts?

wire (pull back conduit to expose

unterminated end of wire).

Continuity present?

YES

Replace fob.

Replace battery.

See a Harley-Davidson

dealer.

6755

Check for continuity

between [208B] terminal

Locate and repair open wire

6756

between connectors [208B]

“1” and ground.

Continuity present?

and end of (Y/BK) wire.

6879

YES

Locate and repair

Replace HFSM.

short to ground.

Learn password and

perform set-up.

6879

6757

NOTE

The fob for the HFSM must be assigned using Digital Technican.

Digital Technician can also validate fob operation when

connected to the motorcycle.

fc01127_en

3-28 2008 Sportster Diagnostics: TSM/HFSM

DTC B0563

3.14

GENERAL

DIAGNOSTICS

The TSM/HFSM continually checks the battery voltage during

Diagnostic Tips

IGN/OFF and IGN/RUN power modes. If the voltage exceeds

•

This DTC may set when the vehicle is placed on a battery

16.0 volts for more than 5.0 ±0.5 seconds, the TSM/HFSM

charger, on fast charge, for a long period of time.

sets Diagnostic Trouble Code (DTC) B0563.

•

The HFSM does not illuminate the security lamp when this

DTC is set.

Diagnostic Notes

See 1.7 CHARGING SYSTEM tests to correct. Problem may

be faulty voltage regulator.

2008 Sportster Diagnostics: TSM/HFSM 3-29

TSM/HFSM: TURN

SIGNAL ERRORS AND DTCS

3.15

TSM/HFSM: For turn signal diagnostics based on symptoms,

GENERAL

refer to Table 3-10.

The turn signals will automatically cancel either based on the

TSM DTCs Only: Refer to Table 3-11.

speed/acceleration of the vehicle or based upon turn comple-

tion. See 3.1 TURN SIGNAL OVERVIEW.

HFSM DTCs Only: Refer to Table 3-12.

Table 3-10. Turn Signal Errors: TSM/HFSM

DTC

SYMPTOM

START WITH FLOW CHART

N/A

Will not cancel on turn completion

Turn Signal Error 1A. (Part 1 of 2) Will Not Cancel Upon Turn Completion

N/A

Cancels erratically

Turn Signal Error 1A. (Part 2 of 2) Cancels Erratically

N/A

Flash

at double normal rate while all

Turn Signal Error 2A. Flash at Double Normal Rate, All Bulbs Work

bulbs are working

Table 3-11. Turn Signal DTCs: TSM Only

DTC

SYMPTOM

START WITH FLOW CHART

B1121

Turn signals will not flash, 4-way

Turn Signal Error 3A. Will Not Flash, 4-Way Flashers Inoperable: DTC

flashers inoperable

B1121, B1122, B1141

B1122

B1141

Table 3-12. Turn Signal DTCs: HFSM Only

DTC

SYMPTOM

START WITH FLOW CHART

B1121

Left turn signal open

Turn Signal Error 4A. Turn Signal Lamp Open Circuit DTC: B1121 Left/

B1122 Right

B1122

Right turn signal open

B1123

Left turn signal short-to-ground

Turn Signal Error 5A. Turn Signal Lamp Short-to-Ground DTC: B1123

Left/B1124 Right

B1124

Right turn signal short-to-ground

B1125

Left turn signal short-to-voltage

Turn Signal Error 6A. Turn Signal Lamp Short-to-Voltage DTC: B1125

Left/B1126 Right

B1126

Right turn signal short-to-voltage

DIAGNOSTICS

Diagnostic Tips

•

TSM Only: DTCs B1121 and B1122 will illuminate the

PART NUMBER

TOOL NAME

security lamp. DTC B1141 will not illuminate the security

HD-41404-B

HARNESS CONNECTOR TEST KIT

lamp.

Job/Time Codes

•

HFSM Only: DTCs B1121, B1122, B1123, B1124, B1125,

and B1126 will illuminate the security lamp.

Dealership technicians filing warranty claims should use the

job/time code printed in bold text underneath the appropriate

•

TSM/HFSM: When an over current or short-to-ground

repair in the diagnostic flow charts.

condition is detected, it will turn off the turn lamp outputs.

3-30 2008 Sportster Diagnostics: TSM/HFSM

Left

Neutral

Right

Left Front

Right Front

Indicator

Hand

Turn Lamp

[142A]

[142B]

Ignition

Controls,

Switch

Right

[33]

Security

Siren

Power

BN/GY

IGN −

R/BK

(optional)

Signal

LGN/BN

BATT −

Right Turn Switch

Ground

ACC −

R/GY

[142A]

Engine Stop Switch

Start Switch

[5]

Stop Lamp Switch

30 Amp

[20A]

2 1

[31B]

[20B]

MAXIFUSE

TSM/

Neutral

2 1

[31A]

HFSM

[30A]

[30B]

Switch

[22A]

[61B]

[136]

[22B]

Battery

BN/GY

IGN

15A

Ignition

R/BK

VSS / Serial data link

LGN/V

Neutral switch

INSTR 15A

Left turn feed

R/BK

Right turn feed

ACCY 15A

Right turn switch input

W/BN

O/W

R/GY

Left turn switch input

W/V

Start relay control

TN/GN

Battery

15A

Clutch switch

BK/R

BN/GY

Alarm signal

LGN/BN

Ground

ECM

15A

BE/GY

Receive antenna

Y/BK

XMIT antenna A

O/Y

XMIT antenna B

87A

System

BE/GY

GN/O

Relay

[208A] [208B]

W/BK

[209B] [209A]

Hands Free Antenna

87A

Start

R/BK

Relay

O/Y

Antenna ’A’

TN/GN

Antenna ’B’

BK/R

[7A]

[119B]

ECM

System relay

GN/O

[7B]

[24B]

Right Rear

Turn Lamp

Serial data link

LGN/V

[24A]

[94B]

Red

Band

[94A]

GND1

[19B]

Battery

[19B]

[19A]

[94A]

Power ground

Powertrain

[128]

Clutch Switch

[19A]

V/BN

Ground

Horn Switch

Switched power

W/BK

Point

Headlamp

Tail Lamp

[18B]

Hi/Lo Switch

Starter

Converter

Left Turn

Power ground

Module

Switch

[18A]

[119]

Spare

Start RLY

System RLY

Spare

Lights

Open

Battery

BE/GY

tail/

[93A]

brake

15A

[18B] [18A]

Fuel Pump

Instruments

Battery

Spare

lamp

[78A]

[78B]

15A

Left Rear

ECM

Ignition

Accessories

P&A IGN

Turn Lamp

15A

Hand Controls, Left

Rear turn signals,

XL 1200N only

op view

Top view

except XL 1200N

Fuseblock

Table 3-13. Wire Harness Connectors

NO.

DESCRIPTION

TYPE

LOCATION

[5]

MAXIFUSE

2-place Metri-Pack, black

On battery strap, behind left side cover

[7]

Rear lighting

6-place Multilock

Under seat

[18]

Left rear turn signal

2-place Multilock

Inside tail lamp lens

[19]

Right rear turn signal

2-place Multilock

Inside tail lamp lens

[20]

Instruments

12-place Molex

Under fuel tank

[22]

Right handlebar controls

6-place Molex

Under fuel tank

[24]

Left handlebar controls

8-place Molex

Under fuel tank

[30]

TSM/HFSM

12-place Deutsch

Under battery

[31]

Front turn signals

6-place Multilock

Under fuel tank

[33]

Ignition switch

Right side of frame behind neck

[61B]

Fuse block

Spade terminals

Behind left side door

[78]

Electronic Control Module (ECM)

36-place Packard

Under seat

[94]

ail lamp power in

6-place Multilock, black

Inside tail lamp lens

[119]

Relay/fuse block

5-place Amp, spade ter-

Fuse/relay block, behind left side cover

minals

[128]

Starter solenoid

Locking spade terminal,

Stater solenoid

white

[136]

Neutral switch

1-place molded jumper, black

Right side frame, beneath gear case

cover

[142]

Security siren

3-place Packard, black

Under frame

[208]

HFSM antenna connector

4-place Deutsch, gray

Under battery

[209]

Security antenna

Ring terminal

Crankcase housing, top rear

Connect BREAKOUT BOX (Part No. HD-42682) (gray)

Diagnostic Notes

between TSM/HFSM connector [30A] and wiring harness

Each reference number below correlates to a circled number

connector [30B]. See 3.12 BREAKOUT BOX: TSM/HFSM.

on the flow chart(s).

Closely inspect handlebar controls for pinched wiring.

1. Gain access to vehicle's TSM/HFSM:

Connect gray HARNESS CONNECTOR TEST KIT (Part

a. Remove battery. See Service Manual for procedure.

No. HD-41404-B) to connector [22] (right) or connector

b. Unplug and remove TSM/HFSM from battery tray.

[24] (left).

c. Reroute wiring harness so TSM/HFSM may be

Replace HFSM if DTC is current (lamp ON continuously,

reconnected while removed from vehicle

cleared codes return during operation). If DTC is historic,

check for intermittents.

d. Reconnect TSM/HFSM.

2. Perform the following procedure:

a. See Figure 3-22. Position TSM/HFSM in same orient-

ation it is mounted on vehicle. Turn Ignition Switch

on. Turn 4-way flashers on by depressing both left

and right turn signal switches simultaneously. Turn

Ignition Switch off; 4-way flashers should continue to

flash.

b. Tilt TSM/HFSM greater than 45 degrees to the left.

c. Repeat step a.

d. Tilt TSM/HFSM greater than 45 degrees to the right.

3. To enable diagnostic mode, see 3.9 CHECKING FOR

DIAGNOSTIC TROUBLE CODES.

3-32 2008 Sportster Diagnostics: TSM/HFSM

Turn Signal Error 1A (Part 1 of 2) Will Not Cancel Upon Turn Completion

Is TSM/HFSM mounted properly?

YES

Check if TSM/HFSM is configured for

Mount correctly.

solo or side car operation. See 3.3

HDSSS ACTUATION.

Proper configuration?

YES

Select proper

Do 4-way flashers cancel in both directions?

vehicle

configuration.

YES

Operate motorcycle at a speed

greater than 7 MPH (11 km/h) in a

Replace TSM/HFSM.

straight line. Activate either turn

Perform setup and

signal. Turn signals should cancel

password learn.

after 20 flashes.

Do turn signals cancel?

6773

YES

Does speedometer

speed?

YES

Replace TSM/HFSM.

Refer to 2.2 INITIAL

Perform password learn

DIAGNOSTIC CHECK:

and setup.

SPEEDOMETER.

STOP

6773

Go to Turn Signal Error 1A

(Part 2 of 2) Cancels

Erratically.

fc01128_en

3-34 2008 Sportster Diagnostics: TSM/HFSM

Turn Signal Error 1A (Part 2 of 2) Cancels Erratically

Continued from Turn Signal Error 1A (Part 1 of 2) Will Not

Cancel Upon Turn Completion.

Check for voltage between Breakout Box terminal “8” (Gray) and

ground at Breakout Box terminal “12” (Gray): with left turn signal

switch depressed, wiggle harness between TSM/HFSM and left

handlebar switches while monitoring for voltage fluctuations or

changes in turn signal flash pattern.

Check for voltage between Breakout Box terminal “7” (Gray) and

ground at Breakout Box terminal “12” (Gray): with right turn

signal switch depressed, wiggle harnessbetween TSM/HFSM

and right handlebar switcheswhile monitoring for voltage

fluctuations or changes in turn signal flash pattern.

Are voltage fluctuations present?

YES

Locate and repair

Check for voltage between Breakout Box terminal “8” (Gray) and

intermittent open.

ground at Breakout Box terminal “12” (Gray): with left turn signal switch

NOT depressed, wiggle harness between TSM/HFSM and left

handlebar switches while monitoring for voltage fluctuations or turn

6855

signal activation.

Check for voltage between Breakout Box terminal “7” (Gray) and

ground at Breakout Box terminal “12” (Gray): with right turn signal

switch NOT depressed, wiggle harness between TSM/HFSM and right

handlebar switches while monitoring for voltage fluctuations or turn

signal flash pattern.

Are voltage fluctuations present?

YES

Locate and repair

Turn ignition switch OFF.

intermittent short

to voltage.

Check for continuity between Breakout Box terminal

“8” (Gray) and ground at Breakout Box terminal “12”

6856

(Gray): with left turn signal switch depressed, wiggle

harness between TSM/HFSM and left handlebar

switches.

Check for continuity between Breakout Box terminal

“7” (Gray) and ground at Breakout Box terminal “12”

(Gray): with right turn signal switch depressed, wiggle

harness between TSM/HFSM and right handlebar

switches.

Is continuity present at any time?

YES

Locate and repair

System OK. Review turn signal

intermittent short

cancellation function with customer. See

to ground.

TURN SIGNAL FUNCTIONS under 3.1

TURN SIGNAL OVERVIEW.

6857

fc01129_en

2008 Sportster Diagnostics: TSM/HFSM 3-35

Turn Signal Error 2A Will Not Flash, 4-Way Flashers Inoperable: DTC B1121, B1122, B1141

Turn ignition switch ON.

Are turn signal lamps on continuously?

YES

Check for voltage on Breakout Box

Activate 4-way flashers.

terminal “5” (Gray) (left turn signals) or

Do any lamps illuminate?

terminal “6” (Gray) (right turn signals) with

TSM disconnected from Breakout

Box.

Is battery voltage present?

YES

Is Connector [30]

YES

STOP

all except XL

mated fully?

XL 1200N only

1200N

Go to Turn Signal Error

2B (Part 1 of 3) Will

Replace TSM. Learn

Not Flash, 4-Way

Locate and repair

password and

Flashers Inoperable:

short to voltage.

perform setup.

DTC B1121, B1122,

YES

B1141.

6790

6791

Place red meter lead at

terminal “1” (Gray) and

Mate

Unplug connectors [18] and [19] at Tail

black meter lead at

connector.

Lamp Converter Module. Check for

terminal “12” (Gray) of

continuity between terminals “12” and “6”

6792

Breakout Box.

(right B1124) or “12” and “5” (left B1123) of

Is battery voltage

Breakout Box (Gray).

present?

Is continuity present?

YES

Move red meter lead to

Breakout Box terminal “2”.

Unplug connector [7] at Tail

Battery voltage present?

STOP

Lamp Converter Module. Check

Locate and repair short to

for voltage between terminals

voltage between Tail

Go to Turn Signal

“12” and “6” (right B1124) or

Lamp Converter Module

YES

Error 2C Will Not

“12” and “5” (left B1123)

and turn signal.

Flash, 4-Way

Breakout Box (Gray).

Flashers Inoperable:

Is voltage present?

6790

Check for voltage at

DTC B1121, B1122,

ignition fuse. Battery

B1141.

STOP

voltage present on both

terminals?

YES

Go to Turn Signal Error

2D Will Not Flash, 4-Way

Flashers Inoperable: DTC

B1121, B1122, B1141.

YES

Locate and repair short to

voltage between

Replace Tail Lamp

Locate and repair

connector [30] and Tail

Converter Module.

open on gray wire

Lamp Converter Module.

STOP

between ignition fuse

6809

and TSM.

6790

Go to 4.11 NO ECM

6793

POWER.

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3-36 2008 Sportster Diagnostics: TSM/HFSM

Turn Signal Error 3A Flash at Double Normal Rate, All Bulbs Work

Determine correct part number for

all installed turn signal bulbs and verify

against parts installed on motorcycle.

Correct parts installed?

YES

Check for corrosion

Replace with

on bulbs and/or sockets.

correct bulbs.

Corrosion present?

6820

YES

Remove corrosion with a wire

Check for corrosion

brush. Install ELECTRICAL

on all lamp connection

CONTACT LUBRICANT (Part

terminals. Corrosion

No. 99861-02) in bulb sockets.

present?

Do lamps flash at normal rate?

YES

System

Clean or replace bulb.

Clean corrosion from

Replace TSM/HFSM.

OK.

Do lamps flash

wires and terminals.

Learn password (if

at normal rate?

Do lamps flash at

needed) and perform

6821

normal rate?

setup.

6824

YES

System

Replace

OK.

lamp

assembly.

System

Replace TSM/HFSM

6822

OK.

Learn password (if

6823

needed) and perform

6822

setup.

6824

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2008 Sportster Diagnostics: TSM/HFSM 3-37

Turn Signal Error 2B (Part 1 of 3) Will Not Flash, 4-Way Flashers Inoperable: DTC B1121,

B1122, B1141

Continued from Turn Signal Error 2A Will Not

Flash, 4-Way Flashers Inoperable: DTC B1121,

B1122, B1141.

Inspect bulbs on side that will not flash.

Are the bulbs OK?

YES

XL 1200N?

Replace bulbs

as necessary.

6796

YES

Place jumper wire between

terminals “2” and “6” of Breakout Box.

Do the right turn signals (front and rear) illuminate?

STOP

YES

Go to Turn Signal

Error 2B. (Part 3 of 3)

Check for continuity between terminal “6” of Breakout Box and right front

Will Not Flash, 4-Way

Place a jumper wire

turn lamp and also between right front lamp housing and ground.

Flashers Inoperable:

between terminals “1” and

Is continuity present?

DTC B1121, B1122,

“5” of Breakout Box.

B1141.

Do the left turn signals

(front and rear) illuminate?

YES

Check for continuity between terminal “6” of

Locate and repair open

Breakout Box and right rear lamp and also

between connector [30]

between right rear lamp housing and ground.

or ground and front lamp.

YES

Is continuity present?

Ground 6797

Signal 6798

YES

STOP

Replace TSM/HFSM.

XL 1200N?

Go to Turn Signal

6791

Go to Turn Signal

Error 2A Will Not

Error 2B (Part 2 of 3)

YES

Flash, 4-Way

Will Not Flash, 4-Way

Flashers Inoperable:

DTC B1121, B1122,

Check for continuity between terminal “6” of Breakout Box

DTC B1121, B1122,

Locate and repair open

B1141.

and terminal “2” of connector [19A] and also between

B1141.

between connector [30]

terminal “2” of connector [19A] and ground.

or ground and rear lamp.

Is continuity present?

Ground 6797

Signal 6798

YES

Check for continuity between terminal “6” of Breakout Box and terminal “2” of

Locate and repair open

connector [7A] and also between terminal “6” of connector [7A] and ground.

between connector [19B]

Is continuity present?

and rear lamp.

Ground 6797

Signal 6798

YES

Replace Tail Lamp

Locate and repair open between connector

Converter Module.

[30] or ground and connector [7A].

Ground 6797

6809

Signal 6798

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3-38 2008 Sportster Diagnostics: TSM/HFSM

Harley Davidson 2008 Sportster Models. Electrical Diagnostics Manual - page 6