Diagnosis Circuit
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 .gif)
).
PROCEDURE
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 | .gif) | REPLACE TRANSPONDER KEY ECU ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Test yourself
A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.