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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Removal
1. Remove the hood support rod, then use it as shown
to prop the hood in the wide-open position.
2. Remove the bulkhead cover.
3. Disconnect the fan motor connectors (A) and hood
switch connector (B), then remove the harness clips
(C).
4. Remove the radiator upper brackets (A), then
remov
Component Location Index
HORN
HORN SWITCH
HORN RELAY CIRCUIT
(Built into the MICU)
CABLE REEL
UNDER-DASH FUSE/RELAY BOX
Circuit Diagram
Horn Switch Test
1. Remove the steering column covers.
2. Disconnect the dashboard wire harness 20P
connector (A) from the cable reel (B).
3. Usin
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