FUSO 4M4 – INTAKE AND EXHAUST – TURBOCHARGER CONTROL SYSTEM – Inspections Performed at Electronic Control Unit Connectors

โ€ข These inspections aid troubleshooting by enabling you to check whether electronic control unit signals are being correctly transmitted via the vehicle harness and connectors.
The white-on-black numbers ( 01 , 02 and so on) correspond to the similarly printed reference number in section โ€œ3. Inspections Based on Diagnosis Codesโ€.

6.1 Electronic control unit connector terminal layout

6.2 Inspection instructions
โ€ข Some inspections are performed with the connectors removed. Others are performed with the connectors fitted.