calvin,
a mechanism built into the braking pedal linkage that connects to the transmission control valve and disengages the drive when the pedal is pressed. (ie: it provides the ability to control the clutches in the transmission and allow the operator to slip the clutches so they can "inch" the travel slowly when performing intricate maneuvers with the truck).

What is the inching pedal???

+1, techtrnr. and teach the operator to NOT allow his foot to rest on the inching pedal.

Don't forget to check the inching cable adjustment. If not properly adjusted the trans fluid will overheat and transfer that heat to the cooling system. I have found this to be a common problem in trucks used in extensive shuttle operations.

I think that idea may have been scrapped, since it means the computer is always getting a falsely (colder than true) signal.
Far better, in my opinion, to figure out why the unit is running hot, and be glad you now get notice before you cook something. (and beat the operator for letting his foot ride on the inching pedal).
By the way, electricity travels at the speed of light, so the -time- differences between the signal running through the resistor and not running through the resistor is not why adding the resistor works, it is because temp senders work on how much resistance is created by the temp change in the sender, and adding a resistor increases the amount of resistance the same as if the sender was cooler than actual, so the computer "sees" a colder signal than is actual.

multiple code e-32 codes failures can be corrected by placing a 1/2watt 32 ohm resister in the blue white wire at the sensor located under the the # 1 coil rack this delays the sample times for the computer and results in no codes unless the unit is really overheated used on cat c5000 models and mitsi fcg25n works everytime

thank you guys i will try these hints.

e 32 is a "first stage overheat" I do all roadtech suggests and also "bleed" the air from the water pump (loosen bolt or thumbscrew on top of waterpump, while radiator cap is loose until coolant only run out, tighten bleed screw then top off radiator with the proper coolant). if using long-life (red antifreeze) then only use the same type of red antifreeze as previously used. not all antifreezes work together well.
the "wait five hours with battery disconnected" is not a guaranteed way to clear the codes. there is a key switch & foot (accel) pedal dance that can clear this code but it will not clear codes related to the pedals.

E-32 is a "overheat" code, blow out radiator,check fan & belt then check thermostat and coolant level and replace if needed. Clear code & restart truck to test. Check & change transmission fluid and clean filter also if needed.

may not help but I would clean all the weather tight connection and the plugs on the ECM's and see what happens. THe one we have after the problem is fixed you have to disconnect the battary for 5 hours before the code will clear.