That was koeo for 111.

 

Ah, ok. Glad we got that sorted out.
116 Coolant temp out of range (probably not warmed up)
536 Brake On/Off shorted to ground
538 No goose test received
632 Cycle transmission switch between tests

Warm the truck up to operating temperature. Re-run the KOER tests, but this time have the transmission in neutral and when you get a single flash a little while into the test (before the codes come out) firmly goose the throttle. Don't leave your foot on the brake the whole time the tests are running either.

 

Haynes gives the definitions in an easier to understand way, sometimes.

116= Coolant temperature sensor outside test limits during test. Usually because the truck isn't warmed up.

536= Brake on/off circuit failure, switch not actuated during KOER test. You didn't step on the brake pedal when asked, or the switch really is bad.

538= insufficient RPM change during KOER dynamic response test. You didn't floor the gas pedal when asked.

632= overdrive cancel switch not changing states (E4OD). This goes hand in hand with the brake switch, as the brake switch cancels the overdrive.