The IAW 48P2 does contain internal ignition power transistors. Instead, it sends 5V logic signals to an external ignition module (often a Bosch 0 227 100 007 or similar). Each output fires two cylinders simultaneously (wasted spark):
Are you planning to perform a or troubleshooting a specific sensor error on this ECU? IAW 48P2 ECU Modification Guide | PDF | Business - Scribd iaw 48p2 pinout
The IAW 48P2 is old but not locked. Common modifications include: The IAW 48P2 does contain internal ignition power
No spark and no fuel? Check for 3V AC at Pins 34/35 during cranking. If absent, suspect the crank sensor (commonly located near flywheel on Fiat 1.8 16V engines). IAW 48P2 ECU Modification Guide | PDF |
The ECU usually connects to the vehicle via (often the larger or upper connector) and Connector B (the smaller or lower connector).
Key power and communication pins often identified for "bench testing" include: Permanent Power (+12V): Located at connector 16V NR (Black) Ignition Power (+12V): Located at connector 16V GR (Gray) Ground (Negative):