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2004-08 ACCESSORIES AND EQUIPMENT Automatic Dimming Inside Mirror - TSX <meta name="InColGX" content=""> </head> <body bgcolor="white" text="black"> <h1>2004-08 ACCESSORIES AND EQUIPMENT</h1> <h1>Automatic Dimming Inside Mirror - TSX</h1><a name="S25258486962008080900000"></a><h2 class="clsHeadOne">System Description</h2> <p>The automatic dimming inside mirror has a front-facing lux level sensor (A), a rear-facing lux level sensor (B), and a control unit. The control unit receives signals from each sensor. Based on the difference between the two lux levels (the light outside the vehicle and the light from the headlights of the other vehicle, etc.), the control unit controls the electro-chromic gel to reduce the glare. This dimming function is canceled when the transmission is in reverse, or when the automatic dimming off switch (C) is turned OFF.</p> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="G05489085" name="S05809929422008080900000">Fig. 1: Identifying Front-Facing Lux Level Sensor, Rear-Facing Lux Level Sensor And Switch</a></span></p><a name="S07857976992008080900000"></a><h2 class="clsHeadOne">Circuit Diagram</h2> <p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="G05489086" name="S14549693702008080900000">Fig. 2: Transmission Range Switch Circuit Diagram</a></span></p><a name="S33566498592008080900000"></a><h2 class="clsHeadOne">Test</h2> <ol class="clsARABICNUM"> <li>Disconnect the 7P connector (A) from the automatic dimming inside mirror (B).<p><span class="clsFig"><a class="clsExtGraphicLink" onclick="ajaxModalImg($(this).attr('id'))" id="G05489087" name="S15338224222008080900000">Fig. 3: Identifying 7P Connector Of Automatic Dimming Inside Mirror</a></span></p> </li> <li>Check for continuity between No. 2 terminal and body ground.<ul class="clsBULLET"> <li>If there is continuity, go to step <a class="clsListItemLink" href="#S13027717312008080900000">4</a>.</li> <li>If there is no continuity, check for:<ul class="clsDASH"> <li>An open in the wire.</li> <li>Poor ground (G503).</li> </ul> </li> </ul> </li> <li>Measure the voltage between No. 1 terminal and body ground with the ignition switch ON (II).<ul class="clsBULLET"> <li>If there is battery voltage, go to step 4.</li> <li>If there is no voltage, check for:<ul class="clsDASH"> <li>Blown No. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box.</li> <li>An open in the wire.</li> </ul> </li> </ul> </li><a name="S13027717312008080900000"></a><li>Measure the voltage between No. 3 terminal and body ground with the ignition switch turned ON (II) and transmission range switch (A/T) in R position or back-up light switch (M/T) in reverse position.<ul class="clsBULLET"> <li>If there is battery voltage, replace the mirror assembly.</li> <li>If there is no voltage, check for:<ul class="clsDASH"> <li>An open in the wire.</li> <li>Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box.</li> <li>Faulty Multiplex Integrated Control System.</li> <li>Faulty transmission range switch (A/T) or backup light switch (M/T).</li> </ul> </li> </ul> </li> </ol> </body> </html>

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AUTOMATIC DIMMING INSIDE MIRROR
  • HEADINGS
    • System Description
    • Circuit Diagram
    • Test
  • FIGURES
    • Fig. 1: Identifying Front-Facing Lux Level Sensor, Rear-Facing Lux Level Sensor And Switch
    • Fig. 2: Transmission Range Switch Circuit Diagram
    • Fig. 3: Identifying 7P Connector Of Automatic Dimming Inside Mirror
  • TABLES

2004-08 ACCESSORIES AND EQUIPMENT

Automatic Dimming Inside Mirror - TSX

System Description

The automatic dimming inside mirror has a front-facing lux level sensor (A), a rear-facing lux level sensor (B), and a control unit. The control unit receives signals from each sensor. Based on the difference between the two lux levels (the light outside the vehicle and the light from the headlights of the other vehicle, etc.), the control unit controls the electro-chromic gel to reduce the glare. This dimming function is canceled when the transmission is in reverse, or when the automatic dimming off switch (C) is turned OFF.

Fig. 1: Identifying Front-Facing Lux Level Sensor, Rear-Facing Lux Level Sensor And Switch

Circuit Diagram

Fig. 2: Transmission Range Switch Circuit Diagram

Test

  1. Disconnect the 7P connector (A) from the automatic dimming inside mirror (B).

    Fig. 3: Identifying 7P Connector Of Automatic Dimming Inside Mirror

  2. Check for continuity between No. 2 terminal and body ground.
    • If there is continuity, go to step 4.
    • If there is no continuity, check for:
      • An open in the wire.
      • Poor ground (G503).
  3. Measure the voltage between No. 1 terminal and body ground with the ignition switch ON (II).
    • If there is battery voltage, go to step 4.
    • If there is no voltage, check for:
      • Blown No. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box.
      • An open in the wire.
  4. Measure the voltage between No. 3 terminal and body ground with the ignition switch turned ON (II) and transmission range switch (A/T) in R position or back-up light switch (M/T) in reverse position.
    • If there is battery voltage, replace the mirror assembly.
    • If there is no voltage, check for:
      • An open in the wire.
      • Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box.
      • Faulty Multiplex Integrated Control System.
      • Faulty transmission range switch (A/T) or backup light switch (M/T).
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