Terminals Of Ecu
- CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Check the voltage or resistance between the terminals of the connectors.
Standard
SPECIFIED CONDITIONSymbols (Terminal No.) Wiring Color Condition Specified Condition BUP (B5-10) ←→ COM (B5-19) Y-R ←→ B-Y - Ignition switch ON
- Back door power window switch UP
Less than 1.5 V Back door power window switch OFF More than 5 kΩ BDN (B5-8) ←→ COM (B5-19) B-L ←→ B-Y - Ignition switch ON
- Back door power window switch DOWN
Less than 1.5 V Back door power window switch OFF More than 5 kΩ W/L1 (B6-24) ←→ W/L2 (B6-22) L-Y ←→ L-R Window lock switch ON Less than 1.0 V Window lock switch OFF More than 1 kΩ If the result is not as specified, the instrument panel J/B assembly (body ECU) malfunctions.
- Check the voltage or resistance between the terminals of the connectors.
- CHECK MULTIPLEX NETWORK DOOR ECU (BACK DOOR ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Check the voltage or continuity between the terminals of the connectors.
Standard
SPECIFIED CONDITIONSymbols (Terminal No.) Wiring Color Condition Specified Condition BDR (B8-4) ←→ Body ground L ←→ Body ground Constant 10 to 14 V BECU (B8-5) ←→ Body ground L-R ←→ Body ground Constant 10 to 14 V SIG (B8-6) ←→ Body ground B ←→ Body ground Ignition switch OFF Less than 1 V Ignition switch ON 10 to 14 V SGND (B9-18) ←→ GND (B8-3) G-R ←→ W-B Constant Continuity GND (B8-3) ←→ Body ground W-B ←→ Body ground Constant Continuity BDUP (B9-13) ←→ BDDN (B9-25) Y-B ←→ R-B Back door power window in close operation 10 to 14 V BDDN (B9-25) ←→ BDUP (B9-13) R-B ←→ Y-B Back door power window in open operation 10 to 14 V IC+ (B9-11) ←→ IC- (B9-23) Y-G ←→ L-W Constant 6 to 14 V IC1 (B9-16) ←→ IC- (B9-23) B-O ←→ L-W Back door power window in operation Pulse generates IC2 (B9-17) ←→ IC- (B9-23) W-R ←→ L-W Back door power window in operation Pulse generates UP (B9-5) ←→ E (B9-19) V-Y ←→ LG-B Back door lock key cylinder turned right using key Continuity DOWN (B9-4) ←→ E (B9-19) GR-R ←→ LG-B Back door lock key cylinder turned left using key Continuity E (B9-19) ←→ SGND (B9-18) LG-B ←→ G-R Constant Continuity P (B9-12) ←→ SGND (B9-18) P-B ←→ G-R Rear wiper in retract position Less than 1 V If the result is not as specified, the multiplex network door ECU back (back door ECU) malfunctions.
- Check the voltage or continuity between the terminals of the connectors.