I have a japanese 1996 model isuzu mu wizard 3.1td Auto (4JG2 engine, chassis UCS69GW). The check trans light has been flashing constantly and it will only shift manually. Do you have any suggestions? I am planning to buy a diagnostics tool, what sort should I be looking for this type of car?

Cars & Trucks - Isuzu - Oasis - 1997 Isuzu Oasis