A-3 1600 Power Circuit Problem

The combination of codes L202, L203, and L204 indicates a problem with the power supply circuit 1600.

Notes on Trouble Trees
1. This checks for voltage supply on circuit 1600. If voltage is present, each code must be diagnosed.
2. If the fuse is open, the circuit 1600 must be checked for a short to ground.
3. If the fuse is ok, there is an open or short to ground in the voltage supply (circuit 2) to the fuse, or an open in circuit 1600.