Terminals Of Ecu
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
ECU CONDITION
| Symbols (Terminals No.) | Wiring Color | Condition | STD Voltage (V) | ||
|---|---|---|---|---|---|
| 1 - 6 (MPX-IG - GND) | - | Ignition switch ON | 10 - 14 V | ||
| 2 - 6 (HAZ - GND) | - | Constant | 10 - 14 V | ||
| 3 - 6 (IG - GND) | - | Ignition switch ON | 10 - 14 V | ||
| 4 - 6 (ACC - GND) | - | Ignition switch ACC | 10 - 14 V | ||
| 5 - 6 (TURN LH - GND) | - | Turn signal light switch Left | 10 - 14 V | ||
| 6 - Body ground (GND - Body ground) | - | Constant | Below 1 V | ||
| 7 - 6 (B/ANC - GND) | - | Constant | 10 - 14 V | ||
| 8 - 6 (PANEL2 - GND) | - | Light control switch TAIL or HEAD | Below 1 V | ||
| Light control switch OFF | 10 - 14 V | ||||
| 9 - 6 (PANEL1 - GND) | - | Constant | 10 - 14 V | ||
| 10 - 6 (TURN RH - GND) | - | Turn signal light switch Right | 10 - 14 V | ||
| D3-7 - D5-1 (HRLY-GND2) | R-Y - W-B | Light control switch HEAD | Below 1 V | ||
| Light control switch OFF or TAIL | 10 - 14 V | ||||
| D3-12 - D5-1 (STOP - GND2) | G-0 - W-B | Stop light switch ON (Brake pedal pushed) |
10 - 14 V | ||
| Stop light switch OFF (Brake pedal depressed) |
Below 1 V | ||||
| D3-13 - D5-1 (STPI - GND2) | G-0 - W-B | Stop light switch ON (Brake pedal pushed) |
10 - 14 V | ||
| Stop light switch OFF (Brake pedal depressed) |
Below 1 V | ||||
| D3-15 (MPX1) | V - G | Multiplex communication circuit | - | ||
| D3-16 - D5-1 (HDCY - GND2) | G-W - W-B | Engine hood courtesy switch ON | Below 1 V | ||
| Engine hood courtesy switch OFF | 10 - 14 V | ||||
| D6-1 - D5-1 (TC - GND2) | R-Y - W-B | Rheostat light control volume tail cancel switch ON | Below 1 V | ||
| Rheostat light control volume tail cancel switch OFF | 5 V | ||||
| D6-2 - D5-1 (CLTB - GND2) | O - W-B | Automatic light control sensor communication circuit | - | ||
| D6-4 - D5-1 (FUEL - GND2) | L-O - W-B | Fuel lid opener switch ON | Below 1 V | ||
| Fuel lid opener switch OFF | 10 - 14 V | ||||
| D6-5 - D5-1 (TSW - GND2) | V - W-B | Luggage compartment door opener switch ON | Below 1 V | ||
| Luggage compartment door opener switch OFF | 10 - 14 V | ||||
| D6-6 - D5-1 (TR1 - GND2) | W-G - W-B | Rheostat light control volume is operating | 10 - 14 V | ||
| D6-7 - Body ground (R/E - Body ground) | LG - Body ground | Constant | Below 1 V | ||
| D6-8 - D5-1 (RET - GND2) | G-O - W-B | Mirror retract switch OFF | Below 1 V | ||
| Mirror retract switch RETRACT | 10 - 14 V | ||||
| D6-9 - D5-1 (RTR - GND2) | GR - W-B | Mirror retract switch OFF | Below 1 V | ||
| Mirror retract switch RETRACT | 10 - 14 V | ||||
| D6-10 - D6-7 (MSW - R/E) | R-G - LG | Mirror left/right adjustment switch OFF | Below 1 V | ||
| Mirror left/right adjustment switch LEFT or RIGHT | 0 - 5 V | ||||
| D6-11 - D6-7 (M+ - R/E) | BR-R - LG | Mirror control switch neutral position | Below 1 V | ||
| Mirror control switch each position | 0 - 5 V | ||||
| D6-12 - D5-1 (TR+ - GND2) | W-G - W-B | Rheostat light control volume is operating | 10 - 14 V | ||
| D6-13 - D5-1 (CLTS - GND2) | V-G - W-B | Automatic light control sensor communication circuit | - | ||
| D6-14 - D5-1 (CLTE - GND2) | V-W - W-B | Automatic light control sensor communication circuit | - | ||
| D6-15 - D5-1 (RV - GND2) | W-L - W-B | Combination meter communication circuit | - | ||
| D6-16 - D5-1 (HDCL - GND2) | B-Y - W-B | Headlight cleaner switch ON | 10 - 14 V | ||
| Headlight cleaner switch OFF | Below 1 V | ||||
| D6-17 - D5-1 (TR2 - GND2) | W-G - W-B | Rheostat light control volume is operating | 0 - 14 V | ||
| D6-18 - D5-1 (TR3 - GND2) | (1)W-G - W-B | Rheostat light control volume is operating | 0 - 14 V | ||
| D6-19 - D5-1 (MIND - GND2) | P - W-B | Mirror is Except retract position | Below 1 V | ||
| Mirror is retract position | 10 - 14 V | ||||
| D6-20 - D5-1 (SW1 - GND2) | Y - W-B | Rheostat light control volume is operating | 5 V | ||
| D6-21 - D5-1 (SW3-GND2) | PL - w-B | Rheostat light control volume is operating | Below 1 V | ||
| D6-22 - D5-1 (SW2 - GND2) | GR-R - W-B | Rheostat light control volume is operating | 0 - 5 V | ||
| D5-1 - Body ground (GND2 - Body ground) | W-B - Body ground | Constant | Below 1 V | ||
| D5-2 - D5-1 (HAZ - GND2) | O - W-B | Hazard warning switch ON | Below 1 V | ||
| Hazard warning switch OFF | 10 - 14 V | ||||
| D5-3 - D5-1 (STPA - GND2) | G-W - W-B | Stop light switch ON (Brake pedal pushed) |
10 - 14 V | ||
| Stop light switch OFF (Brake pedal depressed) |
Below 1 V | ||||
| D5-4 - D5-1 (STP - GND2) | G-O - W-B | Stop light switch ON (Brake pedal pushed) |
10 - 14 V | ||
| Stop light switch OFF (Brake pedal depressed) | Below 1 V | ||||
| D5-5 - D5-1 (MPX-B - GND2) | R-B - W - B | Constant | Below 1 V | ||
| D5-6 (MPX3) | V-G | Multiplex communication circuit | - | ||
| D5-7 (MPX2) | V-G | Multiplex communication circuit | - | ||
| D5-10 - D5-1 (BU+ - GND2) | R - W-B | Back-up communication bus | - | ||
| D5-10 (BU+) | R | Multiplex communication circuit | - | ||
| D4-1 - D4-2 (BES - E) | B-R - B-W | Power shoulder belt anchor system is operation | 0 - 5 V | ||
| D4-2 - Body ground (E - Body ground) | B-W - Body ground | Constant | Below 1 V | ||
| D4-3 - D4-2 (VC - E) | B-Y - B-W | Power shoulder belt anchor system is operation | 0 -5 V | ||
| D4-4 - D4-2 (DBM - E) | L-O - B-W | Power shoulder belt anchor switch DOWN | 10 - 14 V | ||
| Power shoulder belt anchor switch UP | Below 1 V | ||||
| D4-5 - D4-2 (DBM+ - E) | V - B-W | Power shoulder belt anchor switch UP | 10 - 14 V | ||
| Power shoulder belt anchor switch DOWN | Below 1 V | ||||
| D4-6 (BU-) | R | Multiplex communication circuit | - | ||
| D4-8 - D.5-1 (DBKL - GND2) | R-W - W-B | With seat belt ON | Below 1 V | ||
| No seat belt ON | 10 - 14 V | ||||
| D3-9 - D5-1 (BKLR - GND2) | P-L - W-B | Electric tension reducer system is operating | Below 1 V | ||
| D4-10 - D5-1 (DBIL - GND2) | G-B - W-B | Driver door is open | 2 - 6 V | ||
| Driver door is closed | Below 1 V | ||||
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