Terminals Of Ecu [09/2013 - ]
- OCCUPANT DETECTION ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
Since the occupant detection ECU uses waterproof connectors, the voltage and waveform cannot be inspected directly. Standard voltage readings and waveforms are indicated for reference only.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification z12-1 (+B) - z12-3 (GND) - Battery Always 11 to 14 V z12-2 (DIA) - z12-3 (GND) - Diagnosis (DLC3) Power switch on (IG), Techstream not connected to DLC3 Below 1 V z12-3 (GND) - Body ground None - Body ground Ground Always Below 1 V z12-4 (FSR-) - z12-3 (GND) - Center airbag sensor assembly communication line Always Below 1 V z12-5 - z12-3 (GND) - Front passenger side buckle switch ground line Always Below 1 V z12-6 (IG) - z12-3 (GND) - Power source Power switch on (IG) 11 to 14 V z12-7 (FSR+) - z12-4 (FSR-) - Center airbag sensor assembly communication line Power switch on (IG) Pulse generation z12-8 - z12-5 - Front passenger side buckle switch line Always Pulse generation z13-1 - z13-5 - Rear occupant classification sensor LH power supply line Power switch on (IG) 4.9 to 5.1 V z13-2 - z13-6 - Rear occupant classification sensor RH power supply line Power switch on (IG) 4.9 to 5.1 V z13-3 - z13-5 - Rear occupant classification sensor LH signal line Power switch on (IG) Pulse generation z13-4 - z13-6 - Rear occupant classification sensor RH signal line Power switch on (IG) Pulse generation z13-5 - z12-3 (GND) - Rear occupant classification sensor LH ground line Always Below 1 V z13-6 - z12-3 (GND) - Rear occupant classification sensor RH ground line Always Below 1 V