Terminals Of Ecu
WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU)
- Disconnect the B6 ECU connector.
- Disconnect the 1F, 1E, 1B, 1L and 1H instrument panel junction block connectors.
- Check the voltage or continuity of each terminal of the wire harness side connectors.
Standard:
SYMBOLS SPECIFIED CONDITION TABLESymbols (Terminal No.) Wiring Color Condition Specified Condition BECU (1F-12) <==> Body ground W-R <==> - Constant 10 - 14 V BECU (1B-4) <==> Body ground W-R <==> - BECU (1L-4) <==> Body ground W-R <==> - BDR1 (1E-9) <==> Body ground G-W <==> - GND1, 2 (1H-2) <==> Body ground W-B <==> - Continuity KSW (B6-14) <==> Body ground G-Y <==> - No key in ignition switch lock cylinder --> Yes No continuity --> Continuity If the result is not as specified, there may be a malfunction on the instrument panel junction block (body ECU).
- Reconnect the B6 ECU connector.
- Reconnect the instrument panel junction block connectors, and check the voltage of each terminal of the connectors.
Standard:
SYMBOLS SPECIFIED CONDITION TABLESymbols (Terminal No.) Wiring Color Condition Specified Condition DCTY (B5-23) <==> Body ground R-B <==> - Drive door CLOSED --> OPEN 10 - 14 --> 0 V