Toyota 4Runner: TC and CG Terminal Circuit
DESCRIPTION
DTC output mode is set by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are output by the blinking of the tire pressure warning light.
WIRING DIAGRAM
HINT:
When each warning light blinks continuously, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the Techstream and write them down before removal.
- It is necessary to perform registration of the transmitter IDs into
the tire pressure warning ECU after the ECU and/or the tire pressure warning
valve and transmitter has been replaced (See page
.gif)
).
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (DLC3 - ECU AND BODY GROUND) |
(a) Disconnect the F7 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F7-3 (TC) - F13-13 (TC) |
Always |
Below 1 Ω |
|
F7-3 (TC) - Body ground |
Always |
10 kΩ or higher |
|
F13-4 (CG) - Body ground |
Always |
Below 1 Ω |
| OK | .gif) |
CHECK ECU POWER SOURCE CIRCUIT |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU |
ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the tire pressure warning ECU, read the IDs stored ...
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System Description
SYSTEM DESCRIPTION
1. TOUCH SWITCH OUTLINE
Touch switches are touch-sensitive (interactive) switches operated by touching
the screen. When a switch is pressed, the outer film bends in to contact the inner
glass at the pressed position. By doing this, the ...
Door Courtesy Switch Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) receives a door open/closed signal
from each door courtesy light switch.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECHSTREAM (DOOR COURTESY LIGHT SWITCH)
(a ...
0.0065