This truck had multiple codes. It was a intermittent when I operated the unit. Calibrated trans,accelerator to 20%,50 feet on speed.
91-2(126 hits)=Accelerator sensor differential out of range. (A/B)
524265-2 (55 hits)=Trans 4 wire Toss sensor
522713-4 (124 hits) Throttle pedal sensor.

R/R accelerator hall effects & updated worn out pedal shaft. Bushing was worn out causing load on hall eff.
R/R toss sensor. Still got code 524265-2. Found 1 of the red power wires @ hall effects did not have power to it of the 2 red power input feeds. Traced hall eff. harness back to VSM & definitively found a M/F plug half way unplugged. Thought I had it. Checked & have power to both hall eff. red wires. Problem solved? Nope,still get code 524265-2.
Checked for power @ toss 4 wire red wire with test light on battery ground -have power. R/R Toss sensor with another OEM & tiff sensor. Same code. What the $%^& am I missing. Toss sensor is magnetized so I take it my green ground path is good. Pulled & checked every VSM plug. Oh,went in trans diagnostics & checked trans temp sensor. (91degrees) Pulled toss & started truck. Probed white A/B toss output wires & ran a screw driver past sensor. Did not get a output on my light. Maybe I need to use a digital meter for that test? Any input is appreciated.