Electronic Control Module (ECM) - Integrated Sensing Module (ISM)
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Illustration 1 | g03652451 |
(1) ECM (Left-hand side front of engine) |
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Illustration 2 | g03652452 |
(2) ISM (Left-hand side of engine) |
The Electronic Control Module (ECM) (1) controls most of the engine functions. The module is an environmentally sealed unit that is in an engine mounted terminal box. The ECM monitors various inputs from sensors in order to control the engine. The ECM supports the following primary functions:
- Start/stop control
- Injection timing control
- Governing of the engine
- Data link communications
- Diagnostics of the electrical system
- Monitoring and protection of engine operation
The Integrated Sensing Module (ISM) (2) supports the following functions:
- Monitoring of the cylinder exhaust temperature sensors
- Monitoring of the detonation sensors
The modules do not have a removable personality module. The software is changed by programming a flash file into the module via the Caterpillar Electronic Technician (ET).
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