Toyota 4Runner: System Description
SYSTEM DESCRIPTION
1. GENERAL
(a) The heater and blower both have 3 levels controlled by operating the dial-type refreshing seat switch, which is located in the upper console panel.
(b) The on/off state of the heater or blower can be determined by checking if the refreshing seat switch indicator light is on or off.
(c) The blowers of both seats are controlled by the air conditioning amplifier assembly.
(d) The seat heaters of both seats are controlled by the seat heater controls, which are located under their respective seats.
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
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System Diagram
SYSTEM DIAGRAM
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Other materials about Toyota 4Runner:
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to the "See page" below.
Certification ECU
DTC Code
Detec ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK NO. 1 AIR CONDITIONING AMPLIFIER ASSEMBLY
(a) Disconnect the F42 No. 1 air conditioning amplifier assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
Terminal No. ...
0.0243