Suspension & Axle. Lexus Gs430, Gs300. Uzs190 Grs190
Tire And Wheel. Lexus Gs430, Gs300. Uzs190 Grs190
Tire Pressure Warning System -- Terminals Of Ecu |
- HINT:
- Inspect the connectors from the back side while the connectors are connected.

Symbols (Terminal No.) | Wiring Color | Terminal Description | Condition | Specified Condition |
IG (n12-1) - GND (n17-7) | G - W-B | IG power source | Engine switch on (IG) | 10 to 16 V |
CAL-SW (n12-2) - GND (n12-7) | Y - W-B | Tire pressure warning reset switch | Engine switch on (IG), Tire pressure warning reset switch on | 8 to 15V |
CAL-SW (n12-2) - GND (n12-7) | Y - W-B | Tire pressure warning reset switch | Engine switch on (IG), Tire pressure warning reset switch off | Below 1.5 V |
ID-SW (n12-3) - GND (n12-7) | SB - W-B | Tire select switch input signal | Engine switch on (IG), Tire select switch on | 8 to 15 V |
ID-SW (n12-3) - GND (n12-7) | SB - W-B | Tire select switch input signal | Engine switch on (IG), Tire select switch off | Below 1.5 V |
MPX1 (n12-6) - GND (n12-7) | LG - W-B | Multiplex communication line | Engine switch on (IG) | 10 to 16 V |
RDA (n12-9) - GND (n12-7) | SB - W-B | Tire pressure monitor receiver signal | Engine switch on (IG), when the tire pressure monitor receiver is not connected | 9 to 16 V |
RF5V (n12-10) - GND (n12-7) | R - W-B | Tire pressure monitor receiver power source | Engine switch on (IG) | 4.5 to 5.5 V |
MPX2 (n12-12) - GND (n12-7) | GR - W-B | Multiplex communication line | Engine switch on (IG) | 10 to 16 V |
GND2 (n12-4) - GND (n12-7) | P - W-B | Tire pressure monitor receiver ground | Always | Below 1 Ω |