Cause of error code E59

Supply Sensor Shorted.

Solution for error code E59

1. Disconnect wire harness from High Temperature Supply Switch. Measure resistance across terminals 2 and 4. Do temperature and resistance fall within ranges?
Yes: Replace High Temperature Supply Switch
No: -> 2

2. Disconnect J5 from Control Module. Continuity between J5-11 and Switch 2? Continuity between J5-3 and Switch 4?
Yes: Replace coltrol module.
No: Replace wires