Honda CR-V: The Clean Air Act
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 maintain
them. This section summarizes how
the emissions controls work.
* In Canada, Honda vehicles comply
with the Canadian emission
requirements, as specified in an
agreement with Environment
Canada, at the time they are
manufactured.
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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
The onboard refueling vapor
recovery (ORVR) system captures
the fuel vapors during refueling. The
vapors are adsorbed in a canister
filled with activated carbon. While
driving, the fuel vapo
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Component Location Index
RADIATOR FAN RELAY
A/C CONDENSER FAN RELAY
FAN CONTROL RELAY
A/C CONDENSER FAN ASSEMBLY
RADIATOR FAN ASSEMBLY
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 1
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 2
Symptom Troubleshooting Index
Circuit Diagram
Radiato
1. Loosen the upper torque rod mounting bolt (A).
2. Remove the air cleaner housing assembly.
3. Remove the powertrain control module (PCM)
cover, then remove the three bolts securing the
PCM.
4. Remove the PCM bracket.
5. Support the transmission with a jack and wood
block under the transmissio
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