Impressive your D light still works.
Check this thread, it may help.
Alternator Issue? A/T Oil temp, E-Brake, Battery Voltage light all come on at idle. - https://forum.ih8mud.com/threads/alternator-issue-a-t-oil-temp-e-brake-battery-voltage-light-all-come-on-at-idle.1219464/
Check this thread, it may help.
Alternator Issue? A/T Oil temp, E-Brake, Battery Voltage light all come on at idle. - https://forum.ih8mud.com/threads/alternator-issue-a-t-oil-temp-e-brake-battery-voltage-light-all-come-on-at-idle.1219464/