Toyota 4Runner: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Air conditioning system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform troubleshooting.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are lis ...
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 ...
Other materials about Toyota 4Runner:
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU
(Transmitter)
Receiving ECU
(Receiver)
Signal
Line
ECM
Power management control ECU
Crankshaft position sensor signa ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
Take extra care when handling these precision electronic components.
PROCEDURE
1. INSTALL TRANSMITTER BATTERY
(a) Install the battery (lithium battery: CR2016) with the positive (+)
side facing ...
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