Terminals Of Ecu
WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK MAIN BODY ECU
- Disconnect the J1, J4, DA, DB and DD ECU connectors.
- Measure the resistance and voltage according to the value(s) in the table below.MAIN BODY ECU CONNECTOR TERMINAL REFERENCE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition DD-62 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω DD-62 (GND2) - Body ground DB-13 (BECU) - Body ground GR - Body ground Power source Always 11 to 14 V DA-1 (ALTB) - Body ground B - Body ground J4-24 (DCTY) - Body ground BR - Body ground Front door courtesy switch LH signal Switch pushed (Door closed) Below 1 Ω Switch Not pushed (Door open) 10 kΩ or higher J1-5 (KSW) - Body ground LG - Body ground Key unlock warning switch signal No key is in ignition key cylinder 10 kΩ or higher Key is in ignition key cylinder Below 1 Ω HINT:
If the result is not as specified, the ECU may have a malfunction.