Toyota Corolla (E120): Precaution
1. Do not handle refrigerant in an enclosed area or near an open flame
2. Always wear eye protection
3. Be careful not to get liquid refrigerant in your eyes or on your skin
If liquid refrigerant gets in your eyes or on your skin.
- wash the area with lots of cool water.
Caution
: do not rub your eyes or skin.
- apply clean petroleum jelly to the skin.
- go immediately to a physician or hospital for professional treatment.
4. Never heat container or expose it to naked flame
5. Be careful not to drop container and not to apply physical shocks to it
6. Do not operate compressor without enough refrigerant in refrigerant system
If there is not enough refrigerant in the refrigerant system oil lubrication will be insufficient and compressor burnout may occur, so take care to avoid this, necessary care should be taken.
7. Do not open high pressure manifold valve while compressor is operating
If the high pressure valves opened, refrigerant flows in the reverse direction and could cause the charging cylinder to rupture, so open and close the only low pressure valve.
8. Be careful not to overcharge system with refrigerant
If refrigerant is overcharged, it causes problems such as insufficient cooling, poor fuel economy, engine overheating etc.
Other materials:
Monitor description
Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure
sensor malfunctions.
P0451
The ecm senses pressure in the fuel tank using the vapor pressure sensor. The
ecm supplies the sensor
with a regulated 5 v reference–voltage and the sensor returns a signal voltage
betwee ...
Inspection procedure
Hint:
if different dtcs related to different systems that have terminal e2
as the ground terminal are output
simultaneously, terminal e2 may be open.
Read freeze frame data using the hand-held tester or the obd ii scan
tool. Freeze frame data records
the engine conditions when a malf ...
Description
When troubleshooting obd ii vehicles, the only difference
from the usual troubleshooting procedure is that you
need to connect the vehicle to the obd ii scan tool complying
with sae j1978 or the hand–held tester, and read
various data output from the vehicle’s ecm.
Obd ii regulation ...