Raise your standard of service and stand out from the crowd. the content of Ebook 1 .Institution of the injection module the ecu 2.versions 2.1 old versions 2.3 New versions 3.diagnostics 3.1 Vehicle diagnosis 3.2 Diagnosis of the ecu 4. description and tests of the main components 4.1 diodes and semiconductors 4.2 capacitors 4.3 resisto 4.4 bipolar transistorsrs 4.5 Integrated circuits 5. Dedicated integrated circuits and processors 5.1 The processor 5.2 memories 5.3 Buses 5.3 The software 5.4 Operating strategies 6 .Repairs and practical tests 6.1 power supply test 6.2 ECU grounding test 6.3 Cold welds and bad contacts 6.4 Matrix 6.5 Damaged electrolytic capacitors 6.6 Accelerator driver failure 6.7 nozzle driver failure 6.8 Failure in the ignition coil drivers 6.9 Stepper motor driver failure 6.10 Relay activation driver failure 6.11 Failure in the input circuits conclusion.