Terminals Of Ecu
- CHECK DRIVING SUPPORT ECU
- Disconnect the A33 ECU connector.
- Measure the voltage and resistance according to the value(s) in the table below.VOLTAGE AND RESISTANCE REFERENCE CHART
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition A33-11 (STP-) - Body ground BE - Body ground Stop light switch signal input Depress brake pedal 7.5 to 14 V A33-11 (STP-) - Body ground BE - Body ground Stop light switch signal input Release brake pedal Below 1 V A33-13 (B) - Body ground Y - Body ground Power supply Engine switch on (IG) 7.5 to 14 V A33-13 (B) - Body ground Y - Body ground Power supply Engine 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 1 Ω A33-27 (CCS) - Body ground V - Body ground Cruise control switch signal Cruise control switch OFF 10 kΩ 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 620 to 640 Ω A33-27 (CCS) - Body ground V - Body ground Cruise control switch signal CANCEL switch is held ON 1510 to 1570 Ω A33-30 (CCHG) - Body ground LG - Body ground Distance control switch signal Cruise control switch ON, MODE switch ON Below 1 Ω A33-30 (CCHG) - Body ground LG - Body ground Distance control switch signal Cruise control switch ON, MODE switch OFF 10 kΩ or higher A33-34 (ST1-) - Body ground G - Body ground Stop light switch signal input Engine switch on (IG), release brake pedal 7.5 to 14 V A33-34 (ST1-) - Body ground G - Body ground Stop light switch signal input Engine 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.