Honda CR-V: Emissions Controls
			
			
			The burning of gasoline in your 
vehicle’s engine produces several byproducts.
Some of these are carbon 
monoxide (CO), oxides of nitrogen 
(NOx), and hydrocarbons (HC).
Gasoline evaporating from the tank 
also produces hydrocarbons. Controlling 
the production of NOx, CO, 
and HC is important to the environment.
Under certain conditions of 
sunlight and climate, NOx and HC 
react to form photochemical ‘‘smog.’’ 
Carbon monoxide does not contribute 
to smog creation, but it is a 
poisonous gas.
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   The United States Clean Air Act* 
sets standards for automobile 
emissions. It also requires that 
automobile manufacturers explain to 
owners how their emissions controls 
work and what to do to
   
   
 
	
   Your vehicle has a positive 
crankcase ventilation system. This 
keeps gasses that build up in the 
engine’s crankcase from going into 
the atmosphere. The positive 
crankcase ventilation valve
   
   
 
	
   As gasoline evaporates in the fuel 
tank, an evaporative emissions 
control canister filled with charcoal 
adsorbs the vapor. It is stored in this 
canister while the engine is off. After 
the en
   
   
 
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   Component Location Index
	POWER WINDOW MASTER SWITCH
	(With built-in control unit)
	FRONT PASSENGER'S POWER WINDOW SWITCH
	FRONT PASSENGER'S POWER WINDOW MOTOR
	RIGHT REAR POWER WINDOW SWITCH
	RIGHT REAR POWER WINDOW MOTOR
	LEFT REAR POWER WINDOW SWITCH
	LEFT REAR POWER WINDOW MOTOR
	POWER WINDOW 
   
   
 
	
   Component Location Index
	GAUGE CONTROL MODULE
		Input Test
		Replacement
	
	
	IMMOBILIZER-KEYLESS CONTROL UNIT
	(Built in receiver)
	MICU (Built into the under-dash fuse/relay box)
		Input Test
		Replacement
	
	
General Troubleshooting Information
Troubleshooting CAN Circuit Related Problems
NOT
   
   
 
 
	 
	
	
		
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