JAC J2 - Canister Solenoid Valve

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Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
198
With engine idling, use fault diagnostic apparatus to check air-conditioning switch for normal working.
Air conditioning switch Checklist
Items
Air
conditioning
switch
Normal
direction
Off Off
Air conditioning switch
On On
Off
Off
(compressor
clutch
does
not
work)
Air compressor
On On
(compressor
clutch
works)
X.
Canister
solenoid
valve
1. Description
Control air intake from the canister to the general intake piping. The adsorption amount of canister has
certain limits, if evaporation of gasoline attached to the canister is not consumed, it may emit into
ambient air resulting in pollution and increased insecurity.
Internal of canister valve is a solenoid valve structure and its opening is controlled with the digital pulse
square wave
sent from the
ECU.
According to
different engine
operating conditions,
canister solenoid
valve opening is also different; at big loading of the engine and idle time, canister solenoid valve is not
working in order to ensure the engine's output power.
2.
Installati
on
position
3. Wiring
diagram
A: Main relay output end
Pin 35: Canister solenoid valve control signal
4. Diagnosis
Fig. 4.3.021
Canister solenoid valve
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Main relay
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