Toyota Sienna Service Manual: Refrigerant
On-vehicle inspection
1. INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET
(a) This method uses a manifold gauge set to locate problem areas. Read the manifold gauge pressure when these conditions are established.
Test conditions:
- Temperature at the air inlet is 30 to 35°C (86 to 95°F).
- Engine is running at 1,500 rpm.
- All doors are fully open.
- Blower speed control switch is at HI.
- Temperature control switch is at MAX. COOL.
- A/C switch is ON.
(b) Gauge readings (Reference)
(1) Normally functioning refrigeration system
Gauge reading 
(2) The A/C system periodically changes between normal and improper function due to moisture in the refrigerant system.
(3) The A/C system does not function effectively due to insufficient cooling.
(4) The A/C system does not function effectively due to poor circulation of the refrigerant.
(5) The A/C system does not function intermittently because the refrigerant does not circulate.
(6) The A/C system does not function effectively due to overcharged refrigerant or insufficient cooling of the condenser.
(7) The A/C system does not function due to air in the refrigeration system.
| CAUTION: The low-pressure piping may be very hot and cause serious burns. |
(8) The A/C system does not function effectively due to an expansion valve malfunction.
(9) The A/C system does not function due to a defective compressor.
Gauge readings (Reference)
Terminals of ecu
1. A/C AMPLIFIER
HINT:
Check from the rear of the connector while it is
connected to the A/C amplifier.
(a) Waveform 1:
(b) Waveform 2: ...
Replacement
1. DISCHARGE REFRIGERANT FROM
REFRIGERATION SYSTEM
SST 07110-58060 (07117-58080, 07117-58090,
07117-78050, 07117-88060, 07117-88070,
07117-88080)
(a) Turn the A/C switch to ON.
(b) Operating t ...
Other materials:
Vehicle load limits
Vehicle load limits include total load capacity, seating capacity,
TWR (Trailer Weight Rating) and cargo capacity
Total load capacity (vehicle capacity weight):
Total load capacity means the combined weight of occupants, cargo
and luggage.
Seating capacity
Without second center seat: 7 occupan ...
Brake Warning Light Remains ON
DESCRIPTION
The BRAKE warning light comes on when the brake fluid is insufficient, the
parking brake is applied or the
EBD is defective.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
When releasing the parking brake, move the shift lever into the P position in an
AT vehicle, and choke in
...
Grocery bag hooks
The hooks are designed to hang things like a grocery bag.
Type A (front seatback)
(if equipped)
Type B (third seatback)
Type C (luggage compartment)
Type D (luggage compartment)
Pull the hook up.
WARNING
Type C: When not in use, keep the grocery ...
