Terminals Of Ecu
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
VOLTAGE SPECIFICATION
| Symbols (Terminals No.) | Wiring Color | Condition | STD Voltage (V) |
|---|---|---|---|
| T9-1 - T9-14 (CPUB - GND) | V-Y - W-B | Constant | 10 - 14 V |
| T9-2 - T9-14 (IG2 - GND) | B-W-B | Ignition switch ON | 10 - 14 V |
| T9-3 - T9-14 (KSW - GND) | LG-B - W-B | Key unlock warning switch ON (Ignition key inserted) | Below 1 V |
| T9-4 (MPX1) | P-L | Multiplex communication circuit | - |
| T9-5 (MPX2) | P-L | Multiplex communication circuit | - |
| T9-6 (EFIO) | GR-G | ECM communication circuit | - |
| T9-7 (EFII) | GR-R | ECM communication circuit | - |
| T9-9 - T9-14 (VC12-GND) | O - W-B | Ignition key inserted (Transponder key ECU communication circuit) |
5 V (Pulse is generated) |
| T9-10 - T9-14 (CODE - GND) | R-W - W-B | Ignition key inserted (Transponder key ECU communication circuit) |
5 V (Pulse is generated) |
| T9-11 - T9-14 (RXCK - GND) | W-R - W-B | Ignition key inserted (Transponder key ECU communication circuit) |
5 V (Pulse is generated) |
| T9-12 - T9-14 (TXCT-GND) | L-B - W-B | Ignition key inserted (Transponder key ECU communication circuit) |
5 V (Pulse is generated) |
| T9-13 - Body ground (AGND - Body ground) | V - Body ground | Constant | Below 1 V |
| T9-14 - Body ground (GND-Body ground) | W-B - Body ground | Constant | Below 1 V |