Acura RL (1996-2004 year). Manual — part 609
A/C System Service
Evacuation
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure to air conditioner refrigerant and
lubricant vapor or mist can irritate eyes, nose and throat.
Avoid breathing the air conditioner refrigerant and lubri-
cant vapor or mist.
If accidental system discharge occurs, ventilate work
area before resuming service.
R-134a service equipment or vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
compressed air.
Some mixtures of air and R-134a have been
shown to be combustible at elevated pressures and can
result in fire or explosion causing injury or property
damage. Never use compressed air to pressure test R-
134a service equipment or vehicle air conditioner sys-
tems.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
1. When an A/C system has been opened to the atmo-
sphere, such as during installation or repair, it must
be evacuated using a R-134a refrigerant recovery/
recycling/charging station. (If the system has been
open for several days, the receiver/dryer should be
replaced, and the system should be evacuated for
several hours.)
RECOVERY/RECYCLING/CHARGING STATION
LOW-PRESSURE
SIDE
HIGH-PRESSURE
SIDE
2. Connect a R-134a refrigerant recovery/recycling/
charging station to the vehicle, as shown, following
the equipment manufacturer's instructions.
NOTE: If the low pressure does not reach more than
93.3 kPa (700 mmHg, 27.6 in.Hg) in 15 minutes, there
is probably a leak in the system. Partially charge the
system, and check for leaks (see Leak Test).
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Charging
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure to air conditioner refrigerant and
lubricant vapor or mist can irritate eyes, nose and
throat. Avoid breathing the air conditioner refrigerant
and lubricant vapor or mist.
If accidental system discharge occurs, ventilate work
area before resuming service. Additional health and
safety information may be obtained from the refrigerant
and lubricant manufacturers.
Select the appropriate units of measure for your refrig-
erant charging station.
Refrigerant capacity:
700 to 750 g
0.70 to 0.75 kg
1.5 to 1.6 lbs.
24.7 to 26.5 oz.
CAUTION: Do not overcharge the system; the compressor
will be damaged.
Connect a R-134a refrigerant recovery/recycling/charging
station to the vehicle, as shown, following the equipment
manufacturer's instructions.
RECOVERY/RECYCLING/CHARGING STATION
LOW-PRESSURE
SIDE
HIGH-PRESSURE
SIDE
Leak Test
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure to air conditioner refrigerant and
lubricant vapor or mist can irritate eyes, nose and throat.
Avoid breathing the air conditioner refrigerant and lubri-
cant vapor or mist.
If accidental system discharge occurs, ventilate work
area before resuming service.
R-134a service equipment or vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
compressed air.
Some mixtures of air and R-134a have
been shown to be combustible at elevated pressures
and can result in fire or explosion causing injury or
property damage. Never use compressed air to pressure
test R-134a service equipment or vehicle air conditioner
systems.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
1. Connect a R-134a refrigerant recovery/recycling/
charging station to the vehicle, as shown in the pre-
vious column following the equipment manufactur-
er's instructions.
NOTE: Be sure to install the same amount of new
refrigerant oil back into the A/C system before charg-
ing.
2. Open the high-pressure valve to charge the system
to the specified capacity, then close the supply
valve, and remove the charging system couplers.
Select the appropriate units of measure for your
refrigerant charging station.
Refrigerant capacity:
700 to 750 g
0.70 to 0.75 kg
1.5 to 1.6 lbs.
24.7 to 26.5 oz.
3. Check the system for leaks using a R-134a refriger-
ant leak detector with an accuracy of 14 g (0.5 oz)
per year or better.
4. If you find leaks that require the system to be opened
(to repair or replace hoses, fittings, etc.), recover the
system according to the Recovery Procedure on page
5. After checking and repairing leaks, the system must
be evacuated (see System Evacuation on page
).
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Troubleshooting
Tips and Precautions
Before Troubleshooting
• Check applicable fuses in the appropriate fuse/relay
box.
• Check the battery for damage, state of charge, and
clean and tight connections.
• Check the alternator belt tension.
CAUTION:
• Do not quick-charge a battery unless the battery
ground cable has been disconnected, otherwise you
will damage the alternator diodes.
• Do not attempt to crank the engine with the battery
ground cable loosely connected or you will severely
damage the wiring.
Handling Connectors
• Make sure the connectors are clean and have no loose
wire terminals.
• Make sure multiple cavity connectors are packed with
grease (except watertight connectors).
• All connectors have push-down release type locks.
LOCKING TAB
LOCKING TAB
• Some connectors have a clip on their side used to
attach them to a mount bracket on the body or on
another component. This clip has a pull type lock.
• Some mounted connectors cannot be disconnected
unless you first release the lock and remove the
connector from its mount bracket.
LOCKING
PAWL ON
OTHER
HALF OF
CONNECTOR
Pull to
disengage
BRACKET
• The backs of some connectors are packed with
grease. Add grease if necessary. If the grease is
contaminated, replace it.
• Check for loose retainer and rubber seals.
RETAINER
RUBBER SEAL
RETAINER
• Never try to disconnect connectors by pulling on
their wires; pull on the connector halves instead.
• Always reinstall plastic covers.
• Before connecting connectors, make sure the
terminals are in place and not bent.
BENT TERMINAL
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