[Simos 3.3A Multi-Connector Layout] +-------------------------------------------------------+ | [Pin 1: GND] | | [Pin 2: GND] | | [Pin 3: +12V VCC] | | [Pin 41: CAN-H] [Pin 42: CAN-L] | | [Pin 43: K-Line] | | | | [Pin 62: Ignition] +-------------------------------------------------------+ Grounding the Boot Pin
If you are diagnosing a "no-start" or "limp mode" condition, check these signals at the ECU plug. Crankshaft Position Sensor (RPM Signal) Pin 60: Camshaft Position Sensor (Hall Signal) Pin 40: Coolant Temperature Sensor (ECT) Pin 33: Intake Air Temperature (IAT) Pin 54: Knock Sensor Signal Pin 12: Throttle Position Sensor (Track 1) Pin 22: Throttle Position Sensor (Track 2) Actuator and Output Pins simos 33a pinout top
With the physical ECU, you can carefully open it (after disconnecting power) and trace the connector pins to the internal PCB. Look for silkscreen labels (e.g., "VBAT", "GND", "CANH", "CANL") on the PCB itself. Then, use a multimeter to confirm connections. [Simos 3
Capable of processing up to two knock sensor signals via piezo-resistive senders. Bench Pinout Configuration (Standard) Then, use a multimeter to confirm connections
Apply the 12V bench power to the main connector pins after grounding the boot pad. This forces the processor to bypass its standard operating system and enter a programming state. 4. Step-by-Step Bench Connection Procedure