Hello and welcome to just answer.Well my friend the code is for transmission control module power input high. This is a transmission code which pretty much is saying that the power input circuit is running higher than normal voltage. I would take care of this pretty quick because it could lead to internal problems in the transmission but as of right now it is an electrical issue which still needs to be addressed. Here is some more information on the code.
P0883-TCM POWER INPUT HIGH
For a complete wiring diagram REFER to DIAGRAMS/ELECTRICAL . Theory of Operation The Transmission Control Output circuit is used to supply power to the Transmission Solenoid/TRS Assembly and to the PCM when in normal operating mode. The purpose of the Transmission Output circuit is to allow the Transmission Control System to turn off the power to the Transmission Solenoid/TRS Assembly in the event that the transmission should need to be placed into "limp-in" mode due to a DTC. After a PCM reset, (ignition switch turned to the run position, or after cranking the engine) the Transmission Control System verifies that the Transmission Output circuit is open by checking for voltage on the Transmission Output circuits before the Transmission Control System request for the circuit to be powered up. The request is sent by a direct circuit control from the PCM to the TIPM. If voltage is detected on the Transmission Output circuits before the request is sent, the DTC will set.
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See: Transmission Control Systems\Testing and Inspection Diagnostic Test 1. CHECK FOR TCM TIPM DTCS With the scan tool under TIPM, check for TCM Power Control DTCs. Are there any TIPM TCM Power Control DTCS present? Yes
2. CHECK IF DTC P0883 IS CURRENT With the scan tool, check the STARTS SINCE SET counter. NOTE: This counter only applies to the last DTC set. Is the STARTS SINCE SET counter set to 0? Yes
3. CHECK THE (T16) TRANSMISSION OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector and connect Miller tool #8815. Disconnect the TIPM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller tool #8815 to perform diagnosis. Ignition on, engine not running. Measure the voltage of the (T16) Transmission Control Output circuits in the Miller tool #8815. Is the voltage above 0.5 volts on any (T16) Transmission Control Output circuit? Yes
4. CHECK THE TRANSMISSION SOLENOID/TRS ASSEMBLY
Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Ignition on, engine not running. Measure the voltage of the (T16) Transmission Control Output circuits in the Miller tool #8815. Is the voltage above 0.5 volts? Yes
5. CHECK THE (T15) TRANSMISSION CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
Measure the voltage of the (T15) Transmission Control circuit. Is the voltage above 0.5 volts? Yes
6. CHECK WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Where there any problems found? Yes