SOURCE: Need to add Freon
There are two A/C service ports located somewhere in the system, one on the high side (larger port) and one on the low side (smaller port)
They are located in different areas depending on the vehicle, and there is no general location I can give you.
Start from the compressor (belt driven on the engine) and follow your lines, they should be somewhere on the A/C lines or accumulator/dryer (big aluminum canister near the firewall) and are (usually, if they were not left off) capped. Twist the caps off and inside is a "Schrader-type" valve (like the valves on tires). These are the service ports.
Just for reference, there are 2 different sizes of A/C lines on any vehicle, the small ones are the high pressure side (liquid side)(lines which get hot during operation) and the larger ones are low pressure side (vapor side) (lines which get cold during operation).
The system runs a small line from the compressor (on the engine) to the condensor (in front of the radiator), a small line from the condensor, through the orifice tube to the evaporator (inside the cab heater box) then a larger line out of the evaporator, through the accumulator/dryer, back to the compressor.
SOURCE: where is the thermostat on a 2002 suzuki grand vitara?
grab the top radiator hose, follow it back to the engine. Where the hose connects, is the thermostat housing. The thermostat is inside. Remove 2 bolts, and you'll see it.
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SOURCE: 2002 Grand Vitara engine light
Try these easy things...take off clean and reconnect the battery cables, take to Auto Zone for a FREE computer hook up. More than likely if the battery hook up doesn't work it's the oxygen sensor.
SOURCE: central locking fob
Programming
When
Remote control buttons operated repeatedly while vehicle out of range and system becomes inoperative. System malfunction.
How
Ensure ignition switched OFF and all doors closed. Proceed as follows: Within 10 seconds, open driver's door and switch ignition ON. Within 10 seconds of switching ignition ON, switch ignition OFF. Within 20 seconds of switching ignition OFF, press and release driver's door contact switch 3 times. Within 10 seconds of releasing driver's door contact switch, switch ignition ON then OFF. Within 20 seconds of switching ignition OFF, press and hold both remote control buttons in turn for at least 5 seconds. The driver's door should lock and unlock once. Within 5 seconds of driver's door locking/unlocking, press remote control lock button Fig. 1 [1] or unlock button [2]. Programming procedure complete. Confirm programming has been successful by locking and unlocking vehicle.
NOTE: A maximum of 2 remote controls can be programmed.
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