24-22
AIR-CONDITIONING
-
Special TOOIS
/ Troubleshooting
SPECIAL TOOLS
Tool (Number and name)
MB990783-01
Steering/pinion gear
remover/installer
Use
Installation of seal plate
TROUBLESHOOTING
N24EBAE
Before replacing or repairing air conditioning compofents, first determine if the malfunction is; due to refrigerant
charge, air flow, or compressor related.
The following diagnostic charts have been developed as a “quick reference” aid in determining the cause of
malfunction. If these charts do not satisfactorily describe the problem, refer to appropriate section for detailed
explanation.
N24DA.-
After correcting the malfunction, check out the complete system to assure satisfactory performance.
MALFUNCTION CAUSES AND REMEDIES (Numbers indicate checking/inspection order.)
1 not cool 1
Air is
emitted
but is
* 1. Magnetic clutch is
not switched ON
SEE NEXT PAGE 1
Replace
1
I
I I
-4
2.Check the fuse (IOA)
t-l
Replace
I
I
I
I
,
I
3,Check the air-conditioner
__) Replace
switch (P.24-32)
I
4.Check the low pressure
switch (P.24-30)
- Replace
---L 5.Check the thermistor
- Replace
and therm0 relay (P.24-31)
- 6.Check the blower
switch (P.24-10)
- Replace
-i
7.Check the blower relay
M
Replace
(P.24-15)
8.Check the magnetic clutch
(P.24-32)
Replace
I
1 STB Revision
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