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10-06-2012, 03:04 PM
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#1 |
 Drives: 2008 yaris Join Date: Oct 2012
Location: mexico
Posts: 6
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speedometer backlight
Hi; The backlight on a 2008 yaris doesnīt come on when the lights are off. any help is appreciated. Thanks
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10-06-2012, 03:52 PM
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#2 |
 ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Which instrument cluster do you have (speedo only, speedo with tach, MPH, kmh)? The reason I as is that some of the clusters I have experimented with have the backlighting without the headlights and others do not.
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10-06-2012, 04:54 PM
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#3 |
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Drives: 2008 yaris Join Date: Oct 2012
Location: mexico
Posts: 6
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Speedo backlight
Hi; It has the tach and km. The backlight came on with lights off. Not anymore
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10-06-2012, 08:53 PM
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#4 |
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ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Check the 7.5A MET fuse in the fuse panel that is under the bottom of the dashboard on the drivers side.
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10-06-2012, 09:47 PM
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#5 |
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Drives: 2008 yaris Join Date: Oct 2012
Location: mexico
Posts: 6
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Thanks!! Iīll try that tomorrow morning
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10-07-2012, 10:43 AM
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#6 |
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Drives: 2008 yaris Join Date: Oct 2012
Location: mexico
Posts: 6
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Tried all 7.5 amp fuses. All 0k, still no light. What else?
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10-07-2012, 12:33 PM
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#7 | |
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ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Quote:
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10-07-2012, 06:38 PM
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#8 |
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Drives: 2008 yaris Join Date: Oct 2012
Location: mexico
Posts: 6
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YARIS SPEEDO BACKLIGHT
Hi CT; Checked all, still no go. Could it be the light dimmer on the dashboard? Would you know of a diagram for it? It seems easy to pull out but not to disconnect.
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10-07-2012, 07:19 PM
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#9 |
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ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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I don't believe the dimmer rheostat is the issue, since it is only used by the cluster when then headlights are on (and in that mode your backlight works).
The wiring diagrams are downloadable from the Micro Image forum (http://www.microimageonline.com/foru...32-YARIS-FILES) Do you have a multimeter?
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10-08-2012, 08:40 AM
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#10 |
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Drives: 2008 yaris Join Date: Oct 2012
Location: mexico
Posts: 6
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YARIS SPEEDO BACKLIGHT
Yes I have a multi tester. Itīs a bear to use under the dash!! Iīll be downloading the schematic later on todau. I appreciate your help.
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10-08-2012, 08:52 AM
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#11 | |
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ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Quote:
Specifically, on the right side connector, check the black wire on the top right for 12 V (the brown on the bottom left is ground). Also check the blue next to the black for 12 V as well. Also, measure the voltage on the grey and yellow wires with the headlight switch both on and off. Those two wires are the input to the cluster from the dimmer rheostat.
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Linear Mode
