Terminals Of Ecu
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
HINT
Inspect the connectors from the back side while the connectors are connected
ECU CONNECTOR TERMINALS REFERENCE
| Symbol (Terminal No.) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| IG (J49-1) - GND (J49-6) | B - W-B | IG power source | Engine switch on (IG) | 10 to 16 V |
| MPX2 (J49-2) - GND (J49-6) | BR - W-B | Multiplex communication line | Engine switch on (IG) | Pulse generation |
| MPX1 (J49-3) - GND (J49-6) | BR - W-B | Multiplex communication line | Engine switch on (IG) | Pulse generation |
| CLSW (J49-4) - GND (J49-6) | P - W-B | Tire pressure warning reset switch | Engine switch on (IG), tire pressure warning reset switch on | Below 2 4V |
| Engine switch on (IG), tire pressure warning reset switch off | 8 to 15 V | |||
| IDSW (J49-5) - GND (J49-6) | LG - W-B | Tire pressure warning select switch input signal | Engine switch on (IG), tire select switch on | Below 2 4 V |
| Engine switch on (IG), tire select switch off | 8 to 15 V | |||
| GND (J49-6) - Body ground | W-B - Body ground | Tire pressure warning ECU and receiver ground | Always | Below 1 Ω |
| ANT2 (J49-8) - GND (J49-6) | # - W-B | Antenna ground | Always | Below 1 Ω |
| ANT3 (J49-9) - GND (J49-6) | # - W-B | Antenna ground | Always | Below 1 Ω |
| HINT. # There is no wire color information |
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