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. Installation 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
Main relay
