Honda Accord: System Description
EX-L, EX-L PZEV models
The automatic dimming Inside mirror has a front-facing lux level sensor (A), rear-facing lux level sensors (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 glare. This dimming function is canceled when the transmission is in reverse, or when the automatic dimming off button (C) Is turned OFF.

Circuit Diagram
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Test/Replacement
EX-L, EX-L PZEV models
1. Remove the cover (A), then disconnect BP connector
(B).
2. Turn the ignition switch to ON (II).
3. Measure the voltage between terminal No. 2 and
body ground.
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See also:
Special Tools
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Under-hood Fuse/Relay Box
Removal and Installation
Special Tools Required
Relay Puller 07AAC-000A1A0
NOTE; The under-hood fuse/relay box is a part of the left
engine compartment wire harness, and it cannot be
replaced by ...
Steering Column Inspection
Inspection
1. Remove the steering column (see page 17-10).
2. Check these items;
•Check for loose bearing mounting nuts (A).
If they are loose, replace the column as an assembly.
-Check ...