Terminals Of Ecu
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DRIVING SUPPORT ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the A33 ECU connector.
- Measure the voltage and resistance according to the value (s) in the table below.
CONNECTOR TERMINAL REFERENCE CHARTTerminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition A33-11 (STP-) - Body ground 0 - Body ground Stop light switch signal input Depress brake pedal 7 5 to 14 V A33-11 (STP-) - Body ground 0 - Body ground Stop light switch signal input Release brake pedal Below 1 V A33-13 (B) - Body ground Y - Body ground Power supply Power switch ON (IG) 7 5 to 14 V A33-13 (B) - Body ground Y - Body ground Power supply Power switch OFF Below 1 V A33-25 (GND) - Body ground W-B - Body ground Body ground Always Below 1 Ω A33-27 (CCS) - Body ground V - Body ground Cruise control switch signal Cruise control switch ON Below 2 5Ω A33-27 (CCS) - Body ground V - Body ground Cruise control switch signal Cruise control switch OFF 1MΩ or higher A33-27 (CCS) - Body ground V - Body ground Cruise control switch signal +/RES switch is held ON 235 to 245 Ω A33-27 (CCS) - Body ground V - Body ground Cruise control switch signal -/SET switch is held ON 617 to 643 Ω A33-27 (CCS) - Body ground V - Body ground Cruise control switch signal CANCEL switch is held ON 1509 to 1571Ω A33-30 (CCHG) - Body ground LG - Body ground Distance control switch signal Cruise control switch ON, MODE switch ON Below 2.5 Ω A33-30 (CCHG) - Body ground LG - Body ground Distance control switch signal Cruise control switch ON, MODE switch OFF 1MΩ or higher A33-34 (ST1-) - Body ground G - Body ground Stop light switch signal input Power switch ON (IG), release brake pedal 7 5 to 14 V A33-34 (ST1-) - Body ground G - Body ground Stop light switch signal input Power switch ON (IG), depress brake pedal Below 1 V If the result is not as specified, there may be a malfunction on the wire harness side.