Electronic Control Module (ECM) - Replace
Prior to the replacement of the ECM, ensure that replacement is necessary. The ECM is seldom the cause of a failure. Always check that power is available to all the contacts of the ECM that are marked with "+ Battery".
Procedure
- Turn the disconnect switch and the key start switch to the OFF position.
- Disconnect the machine harness connectors from the ECM.
- Verify that the part number of the replacement ECM is correct.
- Install the replacement ECM.
- Connect the machine harness to the ECM.
- Turn the disconnect switch and the key start switches to the ON position.
- Verify that the ECM operates correctly.
- Perform payload calibration.
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