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87-135
Test 2: A/C system high pressure, checking
- Connect high- and low-pressure hoses of refrigerant recovery/ recycling/recharging unit 4 or equivalent, to high- and low-pressure service valves.
- Disconnect electrical connector from coolant fan.
- Start engine.
- Set temperature control to maximum "hot" (if manual A/C) or "HI" (if Climatronic).
- Manual A/C: Press "A/C" button and select highest blower speed.
- Adjust air distribution to footwell outlets.
- Raise engine speed to approximately 1500 RPM.
Specified result
System high pressure is normal if high-pressure gauge reads 232 psi (16 bar) within 30 seconds.
If specified reading is not obtained, also perform test 3 and compare results of all three tests
table,
Page 87-137 . A/C refrigerant system, troubleshooting 13/2/2005 |