Honda CR-V: Crankcase Emissions Control System
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 routes
them from the crankcase back to the
intake manifold. They are then
drawn into the engine and burned.
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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
The exhaust emissions controls
include three systems: PGM-FI,
ignition timing control, and three
way catalytic converter. These three
systems work together to control the
engine’s combusti
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Electronic Control System
The functions of the fuel and emission control systems are managed by the
powertrain control module (PCM).
Self-diagnosis
The PCM detects a failure of a signal from a sensor or from another control
unit and stores a Temporary DTC or a DTC.
Depending on the failure, a DTC
Component Location Index
TPMS CONTROL UNIT
(Behind the dashboard center lower cover)
Replacement
TIRE PRESSURE SENSOR
Replacement
TIRE PRESSURE SENSOR
Replacement
UNDER-DASH FUSE/RELAY BOX
TIRE PRESSURE SENSOR
Replacement
DATA LINK CONNECTOR (DLC)
TIRE PRESSURE SENS
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