EG–527 ENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING WIRING DIAGRAM Engine Control Module B+ E10 M-REL B-R GR GR EA1 GR 24 E10 4B E9 OX1 R/B No.2 EF1 Main Relay B-R B-R 5 B-R EA3 W Main Heated Oxygen Sensor 2 3 1 4 E1 71 E9 HT1 EO1 B-L R-L 47 E9 OX2 EO1 R/B No.2 EFI No.1 B-R R-L 9 R-L 14 IC1 IC K IJ2 W Data Link Connector 2 ENG LG 7 E1 2 EA2 2O J1 B-R Sub Heated Oxygen Sensor 4 IC1 B 2 3 13 J1 72 E9 HT2 5V EO1 4 BR-W 12 BR-W 5 IC1 K IC K IJ2 BR-W LG 29 E9 VF1 EO1 BR BR BR 8 BR 18 BR IC1 K IC K IJ1 4 15 OX1 OX2 VF1 13 LG LG E1 Data Link Connector 1 B W-B Battery FI6918 INSPECTION PROCEDURE 1 Check voltage between terminals HT1 of engine control module connector and body ground. ON SST ECM (B) 71 HT1 BE6853 FI6945 P Connect SST (check harness "A"). (See page EG–510) SST 09990–01000 C Measure voltage between terminals HT1 of engine control module connector and body ground. OK Voltage: 9 — 14 V NG OK Go to step 3 .