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AIR CONDITIONING
9
11.4 MAINTENANCE, INSPECTION AND
TEST
11.4.1 AC PERFORMANCE TEST
PROCEDURE:
NOTE: Initially, conduct open door test and
then close door test.
Insert temperature probe into dash vents. The
probe MUST NOT exceed 50 mm.
Keep all dash vents open & facing straight
ahead position.
STEP 1
Park vehicle in shade, with bonnet
hood closed.
STEP 2
a. Open all the doors for open door test.
b. Close the all doors & windows for
close door test.
STEP 3
Check the ambient temperature Place
a thermometer in the centre dash
vents.
STEP 4
Connect both high & low pressure
gauges to system.
STEP 5
Start the engine and switch ON the
A.C.
STEP 6
Select the following:
Mode Knob : Full Face Position
Blower Switch Knob: On 4th speed
FATC
Fresh/Recirculation Switch,
Fresh air mode for open door test
Recirculation mode for closed door
test. Temperature Control Knob Full
coldest position.
STEP 7
Increase the engine speed to approx.
1500 rpm
STEP 8
Record readings on high & low
gauges (only whilst compressor
running)
STEP 9
Check centre grill temp. after 10 min
NOTE:
For better clarity always refer to the
exploded views.
11.5. SERVICING PROCEDURE FOR BEHR
REMOVAL
AND
FITMENT
OF
AC
COMPONENTS
For removal HVAC unit dashboard is required to
remove first. For dashboard removal refer body
chapter. Separate HVAC unit from dashboard.
11.5.1 BOWDEN CABLE SERVICING (BEHR)
Removing cable from control panel
1. Press the control panel snaps as shown in
arrow direction 1 and pull the cable.
2. Then remove the cable coil from the control
panel gear.