Engine Control Module (ECM) functions
Note. The ECM is equipped with various functions. Some functions can be carried out with ignition switched on or with engine running. The following table details the prerequisites for carrying out the individual functions.
| Function performable with | Ignition switched on | Engine idling |
|---|
| 02 Check DTC Memory | Yes | Yes |
| 03 Output Diagnostic Test Mode | Yes | No |
| 04 Basic Setting | Yes (1) | Yes (2) , (3) |
| 05 Erase DTC Memory | Yes | Yes |
| 06 End Output | Yes | Yes |
| 07 Code Control Module | Yes | No |
| 08 Read Measuring Value Block | Yes | Yes |
| (1) Must be performed after the following work: replacement of Engine Control Module (ECM), throttle valve control module or engine (2) Only possible when coolant temperature is above 80 °C (176 °F). Prior to this function is blocked. (3) Must be performed when checking idle speed. |
| (1) | Must be performed after the following work: replacement of Engine Control Module (ECM), throttle valve control module or engine |
| (2) | Only possible when coolant temperature is above 80 °C (176 °F). Prior to this function is blocked. |
| (3) | Must be performed when checking idle speed. |
ENGINE CONTROL MODULE (ECM) FUNCTIONS
