BUS-ER

Discussion in 'Other Service and Maintenance' started by Kenny rogers, Mar 27, 2017.

  1. Kenny rogers

    Kenny rogers Member

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    My 2007 softail custom had a short in the brake light, and kept blowing an assesory fuse. I fixed that, now the bike shuts off after a few seconds when I start it. Showing codes: high serial data and low serial data... Codes won't clear. Any info? Help needed!
     
  2. Jeff Klarich

    Jeff Klarich Experienced Member Contributor

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    What code numbers does it show? There are several serial data codes.
     
  3. Kenny rogers

    Kenny rogers Member

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    U1300 and U1301

    When I turn the ignition switch on lights up bus ER on display
     
    Last edited by a moderator: Mar 27, 2017
  4. Breeze3at

    Breeze3at Experienced Member

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    Bus er can be any number of things. Try removing the large main (maxi) fuse for about a minute, and see if it resets/clears when you plug it back in.
     
  5. Kenny rogers

    Kenny rogers Member

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    Had battery out a few times should be the same thing ?

    Just tried the fuse trick no luck
     
    Last edited by a moderator: Mar 27, 2017
  6. Jeff Klarich

    Jeff Klarich Experienced Member Contributor

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    U1300 Serial Data Low Carb
    U1300 Serial Data Low EFI
    U1300 Serial Data Low Instruments
    U1300 Serial Data Low TSM/TSSM.
    U1301 Serial Data Open/High Carb
    U1301 Serial Data Open/High EFI
    U1301 Serial Data Open/High Instruments
    U1301 Serial Data Open/High TSM/TSSM
     
  7. Kenny rogers

    Kenny rogers Member

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    Ok how can I fix this ?

    I was told I may need to clear the code history any thoughts on that
     
    Last edited by a moderator: Mar 27, 2017
  8. Jeff Klarich

    Jeff Klarich Experienced Member Contributor

    5,936
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    Start with totally clearing and see what happens
    04-07 HD DTC Codes and Activation
    Published by glider (Wise Member)
    Join Date: Jun 21st, 2007
    Posts: 26,212
    Published date: Jun 21st, 2007

    inShare


    These will also work on the 07 & 08 bikes. There are additional codes for the 08 bikes not listed here but are listed in this same section in another post.


    These apply to 04 and later bikes with the serial bus.

    The IM (instrument module) is capable of displaying DTC's (diagnostic trouble codes).
    Speedometer Self Diagnostics: The speedometer is capable of displaying and clearing speedometer, tachometer, TSM/TSSM and ICM/ECM Diagnostic Trouble Codes (DTC).

    1- Turn Ignition switch to OFF & Run/Stop switch is to Run.

    2- Push odometer reset button in & hold.

    3- Turn ignition switch to Ignition and release odometer reset button. Background lighting should illuminate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate. The word Cœdiag should then appear.

    4 - Push the odometer reset button once and you will see the selection menu "PSSPt" with the first P flashing.

    5 - Each letter represents an area of the diagnostics module. The module that is flashing is the one you are going to check. To move from one letter (module) to the next, you push the odometer reset button one time. (from P to S to SP to t and back to P, etc.)
    P = ECM/ICM (Electronic Control Module [EFI] / Ignition Control Module [Carbureted)
    S = TSM/TSSM (Turn Signal/ Turn Signal Security Module)
    SP = speedometer
    T = tachometer

    6 - To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTC’s the code will be displayed or the word “none” will appear if there are no DTC’s. Push the odometer reset button again to view additional codes if they exist.

    7 - Record the codes.

    8 - If DTC’s are not to be cleared, Press and release the odometer reset button. Part number of module will be displayed.
    NOTE: To determine if a code is current or historic, clear the displayed code by pushing in and holding the odometer reset button ( longer than 5 seconds) until 'clear' comes up. Release the odometer reset button. Turn OFF the ignition switch. Run your bike and shut it down then recheck the DTC’s again by repeating steps 1 to 9. If the code is current it will reappear.

    9 – Press and release the odometer reset button to continue to the next module.

    10 – Turn Ignition switch to OFF.

    On models not equipped with a tachometer "No Rsp" will appear when the tachometer identifier is selected.

    "No Rsp" will also appear if the run/off switch is in the off position when doing this procedure.

    Also if the code set is a historic code (not a constant light) after 50 start and run cycles of at least 30 seconds each in duration, the light will extinguish itself as long as the error hasn't occurred again.
    If it were a current code, the light would remain lit while running.

    --------------------------

    DTC FAULT CONDITION MODULE

    "BUS Er" Serial data bus shorted/low/open/high
    B0563 Battery Voltage High TSM/TSSM
    B1004 Fuel Level Sending Unit Low Instruments
    B1005 Fuel Level Sending Unit High/Open Instruments
    B1006 Accessory Line Over voltage Instruments
    B1007 Ignition Line Over voltage Instruments
    B1008 Reset Switch Closed Instruments
    B1122 Right turn output fault
    B1125 (HFSM) Left Turn Output Short to Battery.
    B1131 Alarm Output Low TSM/TSSM
    B1132 Alarm Output High TSM/TSSM
    B1134 Starter Output High TSM/TSSM
    B1135 Accelerometer Fault TSM/TSSM
    B1141 Ignition switch open/low
    B1151 Sidecar BAS Low TSM/TSSM
    B1152 Sidecar BAS High TSM/TSSM
    B1153 Sidecar BAS Out of Range TSM/TSSM
    P0106 MAP Sensor Rate of Range Error Carb
    P0107 Map Sensor Failed Open/Low Carb
    P0107 Map Sensor Open/Low EFI
    P0108 Map Sensor Failed High Carb
    P0108 Map Sensor High EFI
    P0112 IAT Sensor Voltage Low EFI
    P0113 IAT Sensor Voltage Open/High EFI
    P0117 ET Sensor Voltage Low EFI
    P0118 ET Sensor Voltage Open/High EFI
    P0122 TP Sensor Open/Low EFI
    P0123 TP Sensor High EFI
    P0131 Front 02 sensor low (lean)
    P0132 Engine running rich
    P0134 Front 02 sensor open/not responding
    P0151 Rear 02 sensor low (lean)
    P0152 Rear 02 sensor high (rich)
    P0154 Rear 02 sensor open/not responding
    P0261 Front Injector Open/Low EFI
    P0262 Front Injector High EFI
    P0263 Rear Injector Open/Low EFI
    P0264 Rear Injector High EFI
    P0373 CKP Sensor Intermittent Carb
    P0373 CKP Sensor Intermittent EFI
    P0374 CKP Sensor Not Detected Carb
    P0374 CKP Sensor Sync Error EFI
    P0501 VSS Low Carb
    P0501 VSS Low EFI
    P0502 VSS High/Open Carb
    P0502 VSS High/Open EFI
    P0505 Loss of Idle Speed Control EFI
    P0562 Battery Voltage Low Carb
    P0562 Battery Voltage Low EFI
    P0563 Battery Voltage High Carb
    P0563 Battery Voltage High EFI
    P0602 Calibration Memory Error Carb
    P0603 EEPROM Failure Carb
    P0603 ECM EEPROM Error EFI
    P0604 RAM Failure Carb
    P0605 Program Memory Error Carb
    P0605 ECM Flash Error EFI
    P0607 Converter Error Carb
    P0661 Intake solenoid low/open
    P0662 Intake solenoid high/shorted
    P1001 System Relay Coil Open/Low EFI
    P1002 System relay Coil High/Shorted EFI
    P1003 System relay Contacts Open EFI
    P1004 System Relay Contacts Closed EFI
    P1009 Incorrect Password Carb
    P1009 Incorrect Password EFI
    P1010 Missing Password Carb
    P1010 Missing Password EFI
    P1351 Front Ignition Open/Low Carb
    P1351 Front Ignition Open/Low EFI
    P1352 Front Ignition Coil High/Shorted Carb
    P1352 Front Ignition Coil High/Shorted EFI
    P1353 Front Cylinder No Combustion EFI
    P1354 Rear Ignition Coil Open/Low Carb
    P1354 Rear Ignition Coil Open/Low EFI
    P1355 Rear Ignition Coil High/Shorted Carb
    P1355 Rear Ignition Coil High/Shorted EFI
    P1356 Rear Cylinder No Combustion EFI
    P1357 Intermittent Secondary Front EFI
    P1358 Intermittent Secondary Rear EFI
    U1016 Loss of ICM/ECM Serial Data Instruments
    U1016 Loss of ECM Serial Data, Vehicle Speed, Vehicle Inhibit Motion or Power train Security Status TSM/TSSM
    U1064 Loss of TSM/TSSM Serial Data Carb
    U1064 Loss of TSM/TSSM Serial Data EFI
    U1064 Loss of TSM/TSSM Serial Data Instruments
    U1097 Loss of Speedometer Serial data Carb
    U1097 Loss of Speedometer Serial data EFI
    U1097 Loss of Speedometer Serial data TSM/TSSM
    U1255 Missing Message at Speedometer EFI
    U1255 Serial Data Error/Missing Message EFI
    U1255 Serial Data Error/Missing Message Instruments
    U1255 Serial Data Error/Missing Message TSM/TSSM
    U1300 Serial Data Low Carb
    U1300 Serial Data Low EFI
    U1300 Serial Data Low Instruments
    U1300 Serial Data Low TSM/TSSM.
    U1301 Serial Data Open/High Carb
    U1301 Serial Data Open/High EFI
    U1301 Serial Data Open/High Instruments
    U1301 Serial Data Open/High TSM/TSSM


    2006 models with 02 sensors (Dynas)

    P0131 Front 02 sensor lean for any length of time
    P0151 Rear 02 sensor lean for any length of time
    Above codes can also be set if 02 sensor fails.


    -----------------------

    AFR – Air Fuel Ratio

    ATS – Air Temperature Sensor

    BAS – Bank Angle Sensor

    CCM – Cruise Control Module

    CKP – Crank Position Sensor. The CKP generates an “AC signal” which is sent to the ECM where it is used to reference engine position (TDC) and speed. Home position established by taking readings off the 22 teeth on the alternator rotor.

    DTC – Diagnostic Trouble Codes

    ECM – Electronic Control Module. (The Computer) Computes the spark advance for proper ignition timing and fuel control based on sensor inputs (from CKP, MAP & TP sensors) and controls the low-voltage circuits for the ignition coils and injectors. The dwell time for the ignition coil is also calculated in the microprocessor and is dependent upon battery voltage. The programmed dwell feature gives adequate spark at all speeds.

    ECT – Engine Coolant Temperature. Sensor also controls the cooling fan relay that provides 12 Vdc to the fans.

    EFI – Electronic Fuel Injection

    EFP – Electronic Fuel Pump

    ET – Engine Temperature sensor

    FI – Fuel Injectors

    FPR – Fuel Pressure regulator

    IAC – Idle Air Control actuator

    IAT – Intake Air Temperature sensor

    ISS – Ion Sensing System…detonation detection

    MAP – manifold Absolute Pressure sensor. The MAP sensor monitors the intake manifold pressure (vacuum) and sends the information to the ECM. The EMC then adjusts the spark and fuel-timing advance curves for optimum performance.

    TP – Throttle Position Sensor

    TSM/TSSM (Turn Signal/ Turn Signal Security Module)

    VE – Volume Efficiency

    VSS – Vehicle Speed Sensor. Used as an input for idle speed control

    All Harley Davidson system problems fall into at least one of three general categories.

    Harley Davidson No Start - The engine cranks over freely, but will not start. This does not include situations where the engine will not crank, such as a bad starter, dead battery, etc. This condition assumes that all obvious checks (fuel in tank, etc.) have been made.

    Harley Davidson Poor Performance - The engine starts but there are performance problems.These problems may include poor fuel economy, rough idle, engine misfire, engine hesitation, severe spark knock, etc.

    Harley Davidson Check Engine Lamp
    - The check engine lamp indicates the ignition control module (ICM) has determined a fault condition exists. There may also be starting or performance problems.

    RESOLVING PROBLEMS
    To resolve Harley Davidson system problems, five basic steps are involved. In order of occurrence, they are:
    • Check for diagnostic trouble codes (DTCs) by observing check engine.
    • Retrieve DTCs using Speedometer self diagnostics.
    • Diagnose system problems. This involves using special tools and the diagnostic flow charts in this section.
    • Correct problems through the replacement and/or repair of the affected components.
    • After repairs - Clear DTCs and confirm proper vehicle operation as indicated by the check engine lamp.
    To diagnose Harley Davidson system problems, begin by observing the behavior of the check engine lamp. When the ignition switch is turned ON, the check engine lamp will illuminate for approximately four seconds and then turn off. If the check engine lamp is not illuminated at key ON or if it fails to turn OFF after the initial four second period. If the check engine lamp illuminates late (after 20 seconds), the problem is most likely a serial data bus failure. Test for diagnostic trouble codes (DTCs) using speedometer self diagnostics. If the check engine lamp fails to turn OFF after the initial four second period, a problem exists in the instrumentation. After the check engine lamp turns off following the first four-second illumination period, one of three events may occur:
    • The lamp remains off. This indicates there are no current fault conditions or stored DTCs currently detected by the ICM.
    • The lamp remains off for only four seconds and then illuminates for an eight-second period. This indicates a DTC is stored, but no current DTC exists.
    • The lamp remains off for only four seconds and then is illuminated beyond the eight-second period. This indicates a current DTC exists.
    NOTE - Harley Davidson DTCs relating to the ignition coil can only be fully diagnosed during actuation. For example, a problem with the ignition coil will be considered a current fault even after the problem is corrected, since the ignition control module will not know of its resolution until after the coil is exercised by vehicle start sequence. In this manner, there may sometimes be a false indication of the current DTC.
    To diagnose Harley Davidson turn signal module (TSM) or turn signal security module (TSSM) system problems, begin by observing the behavior of the security lamp. When the ignition switch is turned ON, the security lamp will illuminate for approximately four seconds and then turn off. If the security lamp is not illuminated at Key ON, the problem is likely to be an instrument failure. If the security lamp illuminates late (after 20 seconds), the problem is most likely a serial data bus failure.
    There are two types of Harley Davidson DTCs: current and historic. If a DTC is stored, it can be read using either Digital Technician or the speedometer self diagnostics. All DTCs reside in the memory of the ICM or TSM/TSSM until the DTC is cleared using the speedometer self diagnostics or a total of 50 trips has elapsed. A trip consists of a start and run cycle, the run cycle lasting at least 30 seconds. After the 50 trip retention period, the DTC is automatically erased from memory providing that no subsequent faults of the same type are detected in that period.

    Speedometer Self Diagnostics:
    • Turn Ignition switch to OFF & Run/Stop switch is to Run.
    • Push odometer reset button in & hold.
    • Turn ignition switch to Ignition and release odometer reset button. Background lighting sould illuminate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate. The word diag should then appear.
    • Push the odometer reset button once and you will see the selection menu "PSSPt" with the first P flashing.
    • Each letter represents an area of the diagnostics module. The module that is flashing is the one you are going to check. To move from one letter (module) to the next, you push the odometer reset button one time. Example: from P to S to SP to T and back to P.
    • To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTC's the code will be displayed or the word 'NONE' will appear if there are no DTC's.
    • Push the odometer reset button again to view additional codes if they exist -Record the codes.
    • Press and release the odometer reset button to continue to the next module.
    NOTE: If Harley Davidson DTC's are not to be cleared, Press and release the odometer reset button. Part number of module will be displayed. To determine if a code is current or historic, clear the displayed code by pushing in and holding the odometer reset button (longer than 5 seconds) until 'CLEAR' comes up. Release the odometer reset button. Turn OFF the ignition switch. Run your bike and shut it down then recheck the DTC's again by repeating above steps. If the code is current it will reappear.


    Harley Davidson Various Definitions...
    P = ECM/ICM (Electronic Control Module (EFI) / (Ignition Control Module, 'Carbureted')
    S = TSM/TSSM (Turn Signal/ Turn Signal Security Module)
    SP = Speedometer
    T = Tachometer
    AFR - Air Fuel Ratio
    ATS - Air Temperature Sensor
    BAS - Bank Angle Sensor
    CCM - Cruise Control Module
    CKP - Crank Position Sensor. The CKP generates an 'AC signal' which is sent to the ECM where it is used to reference engine position (TDC) and speed.
    DTC - Diagnostic Trouble Codes
    ECM - Electronic Control Module. (The Computer) Computes the spark advance for proper ignition timing and fuel control based on sensor inputs (from CKP, MAP & TP sensors) and controls the low-voltage circuits for the ignition coils and injectors. The dwell time for the ignition coil is also calculated in the microprocessor and is dependent upon battery voltage. The programmed dwell feature gives adequate spark at all speeds.
    ECT - Engine Coolant Temperature. Sensor also controls the cooling fan relay that provides 12 Vdc to the fans.
    EFI - Electronic Fuel Injection
    EFP - Electronic Fuel Pump
    ET - Engine Temperature sensor
    FI - Fuel Injectors
    FPR - Fuel Pressure regulator
    IAC - Idle Air Control actuator
    IAT - Intake Air Temperature sensor
    ISS - Ion Sensing System detonation detection
    MAP - manifold Absolute Pressure sensor. The MAP sensor monitors the intake manifold pressure (vacuum) and sends the information to the ECM.
    The EMC then adjusts the spark and fuel-timing advance curves for optimum performance. TP - Throttle Position Sensor
    TSM/TSSM (Turn Signal/ Turn Signal Security Module)
    VE - Volume Efficiency
    VSS - Vehicle Speed Sensor. Used as an input for idle speed control
    If Harley Davidson speedometer reads 'BUS Er' with the ignition key switch turned ON (engine stop switch at RUN with the engine off), check serial data line for an open or short to ground between diagnostic link [91A] terminal 3 and ICM connector terminal 12. Check for an open diagnostic test terminal between diagnostic link connector terminal 3 and ICM. With ignition key switch turned ON, transmit data should be typically 0.6-0.8 volts. The range of acceptable operation of the serial data line is 0-7.0 volts. For a quick check of speedometer function, a 'wow' test can be performed. Press and hold odometer reset switch then turn ignition switch ON. Release reset switch. Background lighting should illuminate, gauge needles should sweep their full range of motion, and check engine, battery and security indicator lamps should illuminate. The security lamp may illuminate even if the vehicle is not equipped with a security system. If instrument module fails 'wow' test, check for battery, ground, ignition and accessory wiring to speedometer.
     
  9. Kenny rogers

    Kenny rogers Member

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    Thanks I'll give it try
     
  10. Kenny rogers

    Kenny rogers Member

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    Thanks to Jeff klarich got my bike going lose terminal in speedo connection