IV. The rear defrosting system includes: rear window glass heating net, rear
window defroster relay, rear window defroster switch: in combination with the
emergency light switch, inner integration on the air conditioner controller (for
electrical air conditioning)
1. Fault table, Table 4-24.
Table 4-24
Fault Cause
Deficiency of rear defrosting system
1. Fault in rear defrosting relay
2. Fault in rear defrosting fuse
3. Fault in rear defrosting switch
4. Fault in wiring
2. Check the rear defrosting switch (for electrical air conditioning), shown in Fig. 4-117.
Fig. 4-117
When the defrosting switch is positioned at ON, the terminal 15 and 12 shall be connected; while
at OFF, shall not be connected. If the continuity is out of the specification, renew the defrosting
switch.
Check the luminous indicator light of rear defrosting switch (for electrical air conditioning). Connect
the battery positive with the terminal 3 on the air conditioning HVAC assembly end connector,
while the negative with the terminal 9, when the rear defrosting switch luminous indicator shall be
lit. If the process is out of the specification, renew the defrosting switch.
V. Electric horn system composition
The horn system is started by the horn switch hidden under the ornamental cap of the central air
bag module in the steering wheel. Press the air bag module ornamental cap and the horn relay
can be started, which will lead the necessary electricity to the horn.
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