Overload
1. Wait until EHS reports temperature below 90 degrees. 2. Start the truck and log the reported current from EHS (using DID 0xD003). Do not turn the steering wheel. 3. If the current is above 20A, then check the hydraulic connected to EHS. 4. Disconnect the pump connected to the EHS, start the truck and log the reported current from EHS. 5. If the current is below 10A, then change the pump. 6. Replace the EHS.
What you'll see
Smelling Hot heatsink
System reaction
Yellow
Diagnostic depth
Temperature sensors on the drive board indicates an elevated temperature over a longer time period. This fault indicates either faulty hardware or too high environmental temperature, most likely a combination. Once the drive has cooled down sub 90°C, the DTC will be unset again.
External (Related to hydraulics, e.g. Obstructed hosing)