Toyota Highlander Service Manual: On-vehicle inspection
1. INSPECT PRESSURE SWITCH NO.1.
(a) Magnetic clutch control: Inspect pressure switch operation.
- Set on the manifold gauge set.
- Connect the positive (+) lead from the ohmmeter to terminal 4 and the negative (-) lead to terminal 1.
- Check continuity between terminals when refrigerant pressure is changed, as shown in the illustration.
If operation is not as specified, replace the pressure switch.
(b) Cooling fan control: Inspect pressure switch operation.
- Connect the positive (+) lead from the ohmmeter to terminal 2 and the negative (-) lead to terminal 3.
- Check continuity between terminals when refrigerant pressure is changed, as shown in the illustration.
If operation is not as specified, replace the pressure switch.
2. INSPECT AIR CONDITIONER AMPLIFIER ASSY CIRCUIT
(a) Disconnect the connectors from the A/C amplifier assy and inspect the connector on the wire harness side, as shown the chart.
If the circuit is as specified, try to replace the A/C amplifier assy with a new one. If the circuit is as specified, inspect the circuits connected to other parts.
(b) Connect the connector to A/C amplifier assy and inspect the wire harness side connector from the back side, as shown in the chart.
*1:If the circuit is as specified, try to replace the A/C amplifier assy with a new one. If the circuit is as specified, inspect the circuits connected to other parts.
*2: w/ Navigation System.
*3: w/o Navigation System.
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 refr ...
Inspection
1. COOLER THERMISTOR NO.1(MANUAL AIR CONDITIONER)
(a) Remove cooler thermistor No. 1.
(b) Check resistance between terminals 1 and 2 of cooler
thermistor No. 1 at each temperature, as shown in ...
More about Toyota Highlander:
Lubrication system (2AZ-FE)
On-vehicle inspection
1. CHECK ENGINE OIL LEVEL
(a) Warm up the engine, stop the engine and wait 5 minutes. The oil level
should be between the dipstick's
low level mark and full level mark.
If the oil level is low, check for leakage and add oil up to the full level
mark.
NOTICE:
Do not ...
