That code shows up on the code list here on this site.
Just Commodores - For All Your Holden Commodore Needs
Code 83 - TCC PWM Solenoid Fault - Auto Transmission Only
(see the list of codes in post number 43 in this link)
https://forums.justcommodores.com.au/threads/checking-error-codes-vr-vs-revised-2.22307
because Ive noticed before that some VR and VS error codes are mixed up, therefore some codes arent right. The VR and the VS workshop manuals both show that VR error codes (including auto trans codes) only go to code 82, whereas the VS codes go up to code 97 (including auto trans codes).
The auto transmission error codes for VR are-
Code 27- Pressure switch assembly open circuit.
Code 28- Pressure switch assembly short circuit.
Code 52- System voltage high (sustained).
Code 53- System voltage high.
Code 58- Fluid temp signal (voltage high).
Code 59- Fluid temp signal (Voltage low).
Code 66- 2 to 3 control solenoid circuit.
Code 67- Torque converter clutch solenoid circuit fault.
Code 68- Transmission slipping.
Code 69- Torque converter clutch stuck on.
Code 73- Pressure control solenoid
Code 75- System voltage low.
Code 79- Fluid temperature high.
Code 81- 2 to 3 shift solenoid circuit fault.
Code 82- 1 to 2 shift solenoid circuit fault
The VS transmission error codes are -
Code 28
Code 58.
Code 59.
Code 66.
Code 67.
Code 69.
Code 73.
Code 75.
Code 79.
Code 81.
Code 82.
Code 83.
Unlike the VR workshop manual, the VS workshop manual doesnt show what the actual auto trans codes mean.