TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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TGE/Troubleshooting 2JZ-GE91 / 105
p.092
INSPECTION PROCEDURE — MK4 Supra Troubleshooting 2JZ-GE, page 91
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INSPECTION PROCEDURE 1 Check EFI No.1 Fuse. EFI No.1 Fuse R/B No.2 N08419 P Remove EFI No.1 fuse from R/B No.2. C Check continuity of EFI No.1 fuse. OK Continuity OK NG Check for short in the harness and all the components connected to EFI No.1 fuse (See Electrical Wiring Diagram). 2 Check voltage between terminal BATT of engine control module connector and body ground. LOCK SST ECM A 33 BATT BE8653 FI6490 P Connect SST (check harness "A"). (See page EG-404) SST 09990-01000 C Measure voltage between terminal BATT of engine control module connector and body ground. OK Voltage: 9 — 14 V OK NG Check and repair harness or connector between engine control module and EFI No.1 fuse, EFI No.1 fuse and battery. 3 Are the diagnostic trouble codes still in the memory when the ignition switch is turned OFF? YES NO Check and replace engine control module. Proceed to next circuit inspection shown on matrix chart (See page EG-408).