Yale 524206-2 – Display Switch Cluster (DSC): DSC Fault - Rear Worklight Button Stuck

The system has detected a continuous, uninterrupted signal from the rear worklight button, meaning the switch is either physically jammed in the depressed position or has failed internally (shorted).

• Yale and Hyster Forklifts
• Yale VX Series (GLC20-35VX, GLC050VX, GP/GLP/GDP80-120VX)
• Hyster FT Series (H1.6-1.8FT, H30-35FT)

1. 1

   Inspect the Display Switch Cluster to see if the rear worklight button is physically wedged down by dirt, debris, or a damaged membrane

2. 2

   Disconnect the positive (+) battery connection to completely power down the system and perform a reset

3. 3

   Reconnect the battery, turn the truck power ON, and press both Scroll arrow buttons simultaneously for two seconds to access the active DTC menu to verify if code 524206-2 is still actively displaying

1. 1

   Disconnect battery

   Disconnect the battery positive (+) connection.

2. 2

   Remove DSC

   Remove the mounting hardware securing the Display Switch Cluster (DSC) to the dashboard and disconnect its wiring harness.

3. 3

   Install replacement DSC

   Install the replacement Display Switch Cluster.

4. 4

   Restore battery

   Restore the battery connection.

5. 5

   Turn power ON

   Turn the truck power ON.

6. 6

   Program new DSC

   According to Yale service manuals, installing a new (blank) Display Switch Cluster may require data transferring and programming to sync with the Vehicle System Manager (VSM) using the Yale PC Service Tool Software.

7. 7

   Clear codes and test

   Clear the codes and test the rear worklight button to ensure normal operation.