Case IH 517765-02 - ACM – ACM: Worklight memory 1 switch circuit fault

Data from the switch circuit is erratic, intermittent, or incorrect.

• MAGNUM AFS Connect

1. 1

   Inspect the physical condition and mechanical action of the Worklight Memory 1 switch located on the configurable armrest.

2. 2

   Check the wiring harness and connectors between the Worklight Memory 1 switch and the Armrest Controller Module (ACM) for loose pins, corrosion, or chafing that could cause intermittent signal drops.

3. 3

   Verify that the ACM is communicating properly on the CAN bus and is not logging secondary voltage or communication errors.

1. 1

   Replace the faulty switch

   Replace the Worklight Memory 1 switch if it is found to be faulty.

2. 2

   Repair the armrest harness

   Repair the damaged section of the armrest harness if wiring issues are found.

3. 3

   Replace the ACM

   In rare cases, replace the Armrest Controller Module (ACM) if the internal circuit board has failed.