Toyota 4Runner: System Diagram
SYSTEM DIAGRAM
Communication Table
|
Transmitter |
Receiver |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
ECM |
A/C idle up request signal |
CAN |
|
Heater idle up request signal |
|||
|
PTC heater control request signal* |
|||
|
Electricity load at low voltage state signal |
|||
|
Ambient temperature signal |
|||
|
Main body ECU |
Air conditioning amplifier assembly |
Main body request signal |
|
|
Combination meter assembly |
Air conditioning amplifier assembly |
Vehicle speed signal |
|
|
ECM |
Air conditioning amplifier assembly |
Engine coolant temperature signal |
|
|
Engine speed data |
|||
|
Engine type information signal |
|||
|
Heater control assembly |
Air conditioning amplifier assembly |
OFF operation switch signal |
LIN |
|
A/C switch signal |
|||
|
Rear defogger operation switch signal |
|||
|
Mode operation switch signal |
|||
|
REC/FRS switch signal |
|||
|
Set temperature switch signal |
|||
|
Blower operation switch signal |
- *: w/ PTC Heater
System Description
SYSTEM DESCRIPTION
1. GENERAL
(a) The air conditioning system has the following controls.
Control
Outline
Manual Control
The air conditioning ampli ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the air conditioning system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO W ...
Other materials about Toyota 4Runner:
Removal
REMOVAL
PROCEDURE
1. REMOVE PROPELLER SHAFT ASSEMBLY
(a) Place matchmarks on the propeller shaft flange and differential flange.
Text in Illustration
*a
Matchmark
...
Stop Light Control Relay Malfunction (C1380)
DESCRIPTION
Upon receiving the hill-start assist control operating signal from the master
cylinder solenoid (skid control ECU), the Stop light control relay (Stop light switch
assembly) contact turns on and the stop lights come on.
DTC No.
...
0.0199