EG-493 ENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING DIAGNOSTIC TROUBLE CODE CHECK USING TOYOTA HAND–HELD TESTER 1. Hook up the TOYOTA hand–held tester to the DLC2. 2. Read the diagnostic trouble codes by following the prompts on the tester screen. Please refer to the TOYOTA hand–held tester operation's manual for further details. DIAGNOSTIC TROUBLE CODE CLEARANCE 1. After repair of the trouble areas, the diagnostic trouble code retained in the ECM memory must be cleared out by removing the EFI No.1 fuse (30A) from R/B No.2 for 10 seconds or more, with the ignition switch OFF. HINT: • Cancellation can also be done by removing the negative (–) terminal cable from the battery, but in this case, other memory systems (clock, etc.) will also be cancelled out. • If it is necessary to work on engine components requiring removal of the negative (–) terminal cable from the battery, a check must first be made to see if a diagnostic trouble code has been recorded. 2. After cancellation, road test the vehicle to check that a normal code is now read on the malfunction indicator lamp. If the same diagnostic trouble code appears, it indicates that the trouble area has not been repaired thoroughly. ECM DATA MONITOR USING TOYOTA HAND–HELD TESTER 1. Hook up the TOYOTA hand–held tester to the DLC2. 2. Monitor the ECM data by following the prompts on the tester screen. HINT: TOYOTA hand–held tester has a "Snapshot" function which records the monitored data. Please refer to TOYOTA hand–held tester operator's manual for further details. ECM TERMINAL VALUES MEASUREMENT USING TOYOTA BREAK–OUT–BOX AND TOYOTA HAND–HELD TESTER 1. Hook up the TOYOTA break–out–box and TOYOTA handheld tester to the vehicle. 2. Read the ECM input/output values by following the prompts on the tester screen. HINT: TOYOTA hand–held tester has a "Snapshot" function. This records the measured values and is effective in the diagnosis of intermittent problems. Please refer to TOYOTA hand–held tester/TOYOTA break–out–box operator's manual for further details. FI6997 R/B No.2 N08632 EFI No.1 Fuse R/B No.2 N08418 FI6997 Interface Box Vehicle Harness TOYOTA break-out-box N09348