3406E and 3456 Generator Set Engines Caterpillar


CID 0336 FMI 02 Incorrect ECS Switch inputs

Usage:

3406E 8AZ
Conditions Which Generate This Code:

The Electronic Control Module (ECM) detects the following condition:

  • One line for the Engine Control Switch (ECS) is open and one line is low.

System Response:

The code is logged in memory. The diagnostic code may be viewed on a display module or on the Caterpillar Electronic Technician (ET). The ECM will flag the ECS as invalid data.

Test Step 1. Perform the following diagnostic procedure: "Engine Control Switch (ECS)"

Results:

  • OK - STOP

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