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.
CONNECTOR TERMINAL REFERENCE TABLE
| Terminal No. (Symbols) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A33-11 (STP-) - Body ground | Y - Body ground | Stop light switch signal input | Depress brake pedal | 7.5 to 14 V |
| A33-11 (STP-) - Body ground | Y - 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 | V - Body ground | Distance control switch signal | Cruise control switch ON, MODE switch ON | Below 1 Ω |
| A33-30 (CCHG) - Body ground | V - Body ground | Distance control switch signal | Cruise control switch ON, MODE switch OFF | 10 kΩ or higher |
| A33-34 (ST1-) - Body ground | V - Body ground | Stop light switch signal input | Engine switch on (IG), release brake pedal | 7.5 to 14 V |
| A33-34 (ST1-) - Body ground | V - 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.