D INSPECTION OF IGNITION SWITCH CIRCUIT Turn ignition switch to ON or ACC position. Is CIG fuse normal? No Replace fuse. Is operation normal? No Short circuit in wire harness between fuse and terminal 4 of computer. Yes Yes Fuse faulty. COMPUTER INSPECT IGNITION SWITCH CIRCUIT Open circuit in wire harness between fuse Disconnect connector from computer. No and terminal 4 of computer. Is there battery voltage between terminal 4 of wire harness side connector and body ground? Yes Replace computer.