EG-579 ENGINE — 2JZ-GTE ENGINE TROUBLESHOOTING 6 Check voltage between terminal M-REL of engine control module connector and body ground P Turn ignition switch ON. C Measure voltage between terminal M-REL of engine control module connector and body ground. OK Voltage: 9 — 14 V ON SST ECM 24 M-REL BE6653 FI6491 OK NG Check and replace engine control module. 7 Check EFI No.1 Fuse. P Remove EFI No.1 fuse from R/B No.2. C Check continuity of EFI No.1 fuse. OK Continuity EFI No.1 Fuse R/B No.2 N08419 OK NG Check for short in the harness and all the components connected to EFI No.1 fuse (See Electrical Wiring Diagram).