07 Full size rover NA issues: Lot of info buti wanted to make things as clear as possible

Brief history on the car, I picked it up with small front end damage driver and pass airbag did deploy. I have already replaced the driver and waiting on the pass to get here (not sure if this has anything to do with issues I am having)

The truck was running as it should prior to fixing it except prior to repairing it. I put in a brand new AGM battery, Used throttle body (don't think that's an issue since everything ran fine prior),change radiator, condenser and I went ahead and change the waterpump and thermostat as well with all OEM parts from Worldpac who I have an account with. After I got everything back together forgot to plug up the fan and in the process of bleeding it and running it to make sure everything is good the fan plug got caught in in the fan and chop it off then the car just shut down and went into limp mode., HDC fault, limited gears. The truck also has the spring conversion as well.

Truck now requires a couple tries to get it to start, runs rough, wont go out of 3rd gear


I was getting code p2105 Throttle Position sensor , P0121 Force engine shutdown with autel Ds708 scanner

Using the IID BT after clearing the codes I am getting:

TCCM Transfer case: U0232-86 (2f) lost control with ride level module

IPC Instrument Pack : U0132-87 (2f) Lost communication with ride level control, U0248-87 (2f) lost communication with remote driver utility module

PDM- Park brake- U0401-00 (2b) invalid data received from engine/powertrain control module