Toyota 4Runner: Air Conditioning System(for Automatic Air Conditioning System)
Toyota 4Runner Service Manual / Vehicle Interior / Heating / Air Conditioning / Air Conditioning System(for Automatic Air Conditioning System)
- Parts Location
- Precaution
- System Description
- System Diagram
- How To Proceed With Troubleshooting
- Customize Parameters
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Data List / Active Test
- Dtc Check / Clear
- Diagnostic Trouble Code Chart
- Lost Communication with ECM (U0100,U0142,U0155)
- Driver Side Solar Sensor Short Circuit (B14A2)
- Front Passenger Side Solar Sensor Short Circuit (B14A3)
- Room Temperature Sensor Circuit (B1411/11)
- Ambient Temperature Sensor Circuit (B1412/12)
- Compressor Lock Sensor Circuit (B1422/22)
- Air Inlet Damper Control Servo Motor Circuit (B1442/42)
- Air Outlet Damper Control Servo Motor Circuit (B1443/43)
- Evaporator Temperature Sensor Circuit (B1413/13)
- Air Mix Damper Control Servo Motor Circuit (Passenger Side) (B1441/41)
- Air Mix Damper Control Servo Motor Circuit (Driver Side) (B1446/46)
- BUS IC Communication Malfunction (B1497/97)
- Air Conditioning Control Panel Circuit
- Blower Motor Circuit
- Air Conditioning Compressor Magnetic Clutch Circuit
- Generator Signal Circuit
- PTC Heater Circuit
- IG Power Source Circuit
- Back-up Power Source Circuit
Air Conditioning Pressure Sensor
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT NO. 1 PRESSURE SWITCH
(a) Connect a manifold gauge set.
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Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
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Other materials about Toyota 4Runner:
IG Signal Circuit
DESCRIPTION
This circuit detects the ignition switch ON or off condition, and sends it to
the main body ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following
inspect ...
Downhill Assist Control Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE DRIVE MONITOR SWITCH
2. REMOVE MAP LIGHT ASSEMBLY
3. REMOVE DOWNHILL ASSIST CONTROL SWITCH
(a) Disconnect the 2 connectors.
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