DESCRIPTION
This circuit is used to read the DTCs that are output from the transponder key ECU assembly with the Techstream.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly is replaced, register the key and ECU communication
ID (See page ).
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (DLC3 - TRANSPONDER KEY ECU AND BODY GROUND) |
(a) Disconnect the transponder key ECU assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D22-9 (D) - D1-7 (SIL) |
Always |
Below 1 Ω |
D1-4 (CG) - Body ground |
Always |
Below 1 Ω |
D22-9 (D) - Body ground |
Always |
10 kΩ or higher |
D1-7 (SIL)- Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Transponder Key ECU Assembly) |
*2 |
Front view of wire harness connector (to DLC3) |
OK | ![]() |
REPLACE TRANSPONDER KEY ECU ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Customizable features
1. Vehicles with TFT type multi-information display: Some function settings can
be changed by operating the multi-information display.
2. Settings that can be changed by your Toyota dealer
Definition of symbols: O = Available, -- = Not available
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the main body ECU (driver side junction block assembly) connectors.
(b) Measure the resistance and voltage according to the value(s) in the table
below.
...
Cellular Phone Inspection
PROCEDURE
1.
CHECK USAGE CONDITION
(a) Check that the vehicle and cellular phone meet the following conditions:
NOTICE:
If changing cellular phone settings, updating software, etc. is necessary, make
sure to obtain the per ...