Section 283 (Air Conditioning System): Refrigerant: Replacement

WARNING: This page is about a different car, the 2004 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.

DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM
1. Turn the A/C switch to ON.
2. Operating the cooler compressor at the engine RPM of approx. 1,000 for 5 to 6 min., circulate the refrigerant and collect the compressor oil remaining in each component into the cooler compressor as much as possible.
3. Stop the engine.
4. Let the refrigerant gas out.
  1. SST 07110-58060 (07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080)
CHARGE REFRIGERANT
1. Using a vacuum pump, perform a vacuum purging.
2. Charge refrigerant, HFC-134a (R134a).
  Standard:
  1. Single A/C: 600 +/- 30 g (21.16 +/- 1.06 oz.)
  2. Dual A/C: 800 +/- 30 g (28.21 +/- 1.06 oz.)
  3. SST 07110-58060 (07117-58060, 07117-58070, 07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080)
Fig 1: Refrigerant Charge Graph
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
WARM UP ENGINE
INSPECT LEAKAGE OF REFRIGERANT
1. Using a gas leak detector, check for leakage of the refrigerant.