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:
Alternator Control Circuit
Troubleshooting
NOTE: Do this troubleshooting if, in step 5 of the
alternator and regulator circuit troubleshooting (see
page 4-27), the battery voltage is less than 13.5 V.
* 1. Connect the Honda Diagnostic Sys ...
A/T Clutch Pressure Control Solenoid
Valve A Test
1. Connect the HDS to the DLC (A) located under the
driver's side of the dashboard.
2. Turn the ignition switch to ON (II). Make sure the HDS
communicates with the PCM. If it does not, go to the
...
Using Automatic Climate Control
The automatic climate control system maintains the interior temperature you
select.
The system also selects the proper mix of heated or cooled air that will as
quickly as
possible, raise or l ...