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techtalk:evo:elec03 [2024/05/14 00:24] – [Speedometers] ixl2relaxtechtalk:evo:elec03 [2025/01/06 16:20] (current) – [TURN SIGNALS] ixl2relax
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 XLForum Discussion: https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/efi-sportster-motorcycle-talk-2007-and-up/181738-dtcs-u1255-u1016-any-known-causes-ecm-dying/page2#post3887377 XLForum Discussion: https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/efi-sportster-motorcycle-talk-2007-and-up/181738-dtcs-u1255-u1016-any-known-causes-ecm-dying/page2#post3887377
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-**2004-later - Speedometer WOW Test** ((From the Electrical Diagnostic Manual))\\ 
- 
-Typically, when power is applied and the speedometer turns on, it proceeds through an initialization sequence. It does this every time power is removed and re-applied. 
- 
-The visible part of this sequence is the check engine lamp, security lamp, backlighting and odometer display. Upon key ON (Run/Off switch set to RUN), the check engine lamp and security lamp will illuminate for four seconds and then (if parameters are normal) will turn off. 
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-As an additional quick check of speedometer function, a "WOW" test can be performed. Press and hold trip odometer reset switch, then turn Ignition Switch ON. 
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-Release trip odometer reset switch. Background lighting should illuminate, gauge needle should sweep its full range of motion, and indicator lamps (check engine, low fuel, battery and security) should illuminate. 
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-If instrument module fails "WOW" test, check for battery, ground, ignition, trip odometer reset switch and accessory wiring to speedometer. 
- 
-**Tech Notes:**\\ 
-Constant power is supplied to the speedometer through Pin2 (Battery) of Connector #20 on the Main Harness. The speedometer turns on when power is applied to Pin6 (Ignition - Conn20). The speedometer proceeds through an initialization sequence every time power is removed (key switch off) and re-applied to Pin1 (Accessory - Conn20). The visible part of this sequence is the check engine lamp, security lamp, backlighting and odometer display. Upon key ON (Run/Off switch set to RUN), the check engine lamp and security lamp will illuminate for four seconds and then (if parameters are normal) will turn off. 
- 
-The Security Lamp (Security Indicator in the speedometer), which is shaped like a 'key', is illuminated by the TSM/TSSM/HFSM using positive voltage on the BROWN/Violet wire. 
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-^  Power Sources at Connector 20 of the Main Harness (to Instruments)  |||| 
-|  Pin 2          |  Pin 6             |  Pin 1               |  Pin 12    | 
-|  Battery Fuse   |  Instrument Fuse   |  Accessory Fuse      |  Ground    | 
-|  Constant       |  When Ignition ON  |  When ACC or Ign ON  |  Constant  | 
-^  The results of these connections failing  |||| 
-| * Security lamp\\ .. glows dimly\\ .. during\\ .. 4-second\\ .. bulb check | * Will not do WOW\\ * Speed shows 0\\ * Tach unaffected\\ * Security lamp works\\ * Check Engine lamp\\ .. & battery lamp\\ .. non-functional\\ * No diagnostics | * Speedo non-functional\\ * Security lamp\\ .. will still do\\ .. 4-sec display | * Speedo non-functional\\ * No diagnostics | 
  
 \\ \\
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 \\ \\
 +
 +==== 2004-later Speedo WOW Test ====
 +((From the Electrical Diagnostic Manual))\\
 +
 +Typically, when power is applied and the speedometer turns on, it proceeds through an initialization sequence. It does this every time power is removed and re-applied.
 +
 +The visible part of this sequence is the check engine lamp, security lamp, backlighting and odometer display. Upon key ON (Run/Off switch set to RUN), the check engine lamp and security lamp will illuminate for four seconds and then (if parameters are normal) will turn off.
 +
 +As an additional quick check of speedometer function, a "WOW" test can be performed. Press and hold trip odometer reset switch, then turn Ignition Switch ON.
 +
 +Release trip odometer reset switch. Background lighting should illuminate, gauge needle should sweep its full range of motion, and indicator lamps (check engine, low fuel, battery and security) should illuminate.
 +
 +If instrument module fails "WOW" test, check for loose wiring at the speedometer. If you can, access Diagnostic Trouble Codes.
 +
 +**Tech Notes - 2004-2013**\\
 +If instrument module fails "WOW" test, check for battery, ground, ignition, trip odometer reset switch and accessory wiring to speedometer.
 +
 +Constant power is supplied to the speedometer through Pin2 (Battery) of Connector #20 on the Main Harness. The speedometer turns on when power is applied to Pin6 (Ignition - Conn20). The speedometer proceeds through an initialization sequence every time power is removed (key switch off) and re-applied to Pin1 (Accessory - Conn20). The visible part of this sequence is the check engine lamp, security lamp, backlighting and odometer display. Upon key ON (Run/Off switch set to RUN), the check engine lamp and security lamp will illuminate for four seconds and then (if parameters are normal) will turn off.
 +
 +The Security Lamp (Security Indicator in the speedometer), which is shaped like a 'key', is illuminated by the TSM/TSSM/HFSM using positive voltage on the BROWN/Violet wire.
 +
 +^  Power Sources to Speedometer  |||||
 +|  Source     |  Battery Fuse  |  Instrument Fuse  |  Accessory Fuse  |  Ground    |
 +|  Conn#20    |  Pin 2         |  Pin 6            |  Pin 1           |  Pin 12    |
 +|  At Speedo  |  Pin 5         |  Pin 1            |  Pin 6           |  Pin 7     |
 +|  When       |  Constant      |  Ignition ON      |  ACC or Ign ON   |  Constant  |
 +^  The results of these connections failing  |||||
 +|             | * Speedo non-functional\\ * Security lamp\\ .. glows dimly\\ .. during\\ .. 4-second\\ .. bulb check | * Will not do WOW\\ * Speed shows 0\\ * Tach unaffected\\ * Security lamp works\\ * Check Engine lamp\\ .. & battery lamp\\ .. non-functional\\ * No diagnostics | * Speedo non-functional\\ * Security lamp\\ .. will still do\\ .. 4-sec display | * Speedo non-functional\\ * No diagnostics |
 +
 +
 \\ \\
  
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 ===== Indicator Lights - Idiot Lights ===== ===== Indicator Lights - Idiot Lights =====
  
-**1992-1994** models used Indicator Units without replaceable individual bulbs - The entire unit (cylindrical housing with pig tail wires) needs to be replaced:\\+**Indicator Lights - Circuit Activation** 
 + 
 +| YEAR | Indicator | Activated By | 
 +| 86-91 |  HiBeam  | Powered from Hi/Lo Switch when on 'HI' | 
 +| ::: |  Turn  | Single Lamp - Powered when either TS Switch Active | 
 +| ::: | HiBeam & TS Indicators Are Always Grounded || 
 +| ::: |  Neutral  | Grounded when Neutral Switch Active| 
 +| ::: |  Oil  | Grounded when Oil Pressure Switch has 'Low' Pressure | 
 +| ::: | Neutral & Oil Indicators Always Get Power from Acc Circuit || 
 +| 92-13 |  HiBeam  | Powered from Hi/Lo Switch when on 'HI' | 
 +| ::: |  L. Turn  | Power from Left TS output circuit of TSM | 
 +| ::: |  R. Turn  | Power from Right TS output circuit of TSM | 
 +| ::: | HiBeam & TS Indicators Are Always Grounded || 
 +| ::: |  Neutral  | Grounded when Neutral Switch Active| 
 +| ::: |  Oil  | Grounded when Oil Pressure Switch has 'Low' Pressure | 
 +| ::: | Neutral & Oil Indicators Are Always Powered from Acc Circuit || 
 +| 14-22 |  HiBeam  | \\ Each Indicator is grounded from the Speedometer\\ based on system operations as communicated to\\ the Speedometer from the ECM over the CANbus.| 
 +| ::: |  L. Turn  | ::: | 
 +| ::: |  R. Turn  | ::: | 
 +| ::: |  Neutral  | ::: | 
 +| ::: |  Oil  | ::: | 
 +| ::: | All Indicators are Powered from Always-On Battery Fuse || 
 +| Note: TS means Turn Signal / TSM means Turn Signal Module ||| 
 + 
 +**Bulbs** 
 + 
 +**1986-1991** models used individual Indicator bulbs.\\ 
 + 
 +**1992-1994** models used Indicator Units without replaceable individual bulbs - The entire unit (cylindrical housing with pig tail wires) needs to be replaced.\\
  
 **1995-2006** models used replaceable Indicator Bulbs - P/N 68024-94\\ **1995-2006** models used replaceable Indicator Bulbs - P/N 68024-94\\
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 The indicator lights are LEDs that are soldered onto a circuit board strip (SMDs). These individual LEDs are activated by the Speedometer, which communicates with the ECM/BCM via the CANbus. The indicator lights are LEDs that are soldered onto a circuit board strip (SMDs). These individual LEDs are activated by the Speedometer, which communicates with the ECM/BCM via the CANbus.
  
-Here is DIY info regarding the repair of faulty indicator lights (2014-later). +Here is DIY info regarding the repair of faulty indicator lights.\\ 
-  * [[techtalk:evo:elec03b|Subdoc - Indicator / Warning Lights Not Working - Repair]]+  * [[techtalk:evo:elec03b|Subdoc - Indicator / Warning Lights Not Working - Repair (2014-later).]] 
 + 
 +An interesting repair in this [[https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/rubber-mount-sportster-motorcycle-talk-2004-2006/202706-repair-of-trim-plate-indicator-lamps-68513-95a?t=2079909|XLForum Thread]] by Krono.
  
 **INDICATOR LIGHTS PARTS LIST** **INDICATOR LIGHTS PARTS LIST**
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 ^ 2007 Custom Models - LEDs || ^ 2007 Custom Models - LEDs ||
 | | LEDs & Housing part of Harness (68814-07)\\ 68382-07B Trim Plate & Bezel Assy (Symbols/Clear Lense) | | | LEDs & Housing part of Harness (68814-07)\\ 68382-07B Trim Plate & Bezel Assy (Symbols/Clear Lense) |
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-An interesting repair in this [[https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/rubber-mount-sportster-motorcycle-talk-2004-2006/202706-repair-of-trim-plate-indicator-lamps-68513-95a?t=2079909|XLForum Thread]] by Krono. 
  
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 +
 +**( [[techtalk:evo:engctl03b|SUBdoc - VSS / Speedometer / TSM Control Signals]] )**
  
 **( [[techtalk:evo:elec03g|SUBdoc - BASIC TESTING of Turn Signal Wiring]] )** **( [[techtalk:evo:elec03g|SUBdoc - BASIC TESTING of Turn Signal Wiring]] )**

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