Still couldn't find a solution for this diagnosis process in the AC module. The AC module part no is Z599. If we can find this part, I can replace this and check AC is properly working or not ?
At the moment if I switch on the AC the RPM meter will shaking like 500 - 1200. Normally if we switch on the AC, RPM meter will be in stable mode like 1000.
Guys, any ideas on this AC module part ?