EG–536 ENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING CIRCUIT DESCRIPTION (Cont'd) DIAGNOSTIC TROUBLE CODE DETECTION DRIVING PATTERN Purpose of the driving pattern. (a) To simulate diagnostic trouble code detecting condition after diagnostic trouble code is recorded. (b) To check that the malfunction is corrected when the repair is completed confirming that diagnostic trouble code is no longer detected. Malfunction: Open or Short in Injector circuit, Injector Leak or Blockage (rpm) Detection Idling ② ③ IG SW OFF ① 5 min. (Time) P18749 (1) Disconnect the EFI No.1 fuse (30A) for 10 sec. or more, with IG switch OFF. Initiate test mode (Connect terminal TE2 and E1 of data link connector 2 with IG switch OFF). (2) Start the engine and warm up with all ACC switched OFF. (3) Idle the engine for 5 min. (After the entine is started, do not depress the accelertor pedal.) HINT: If a malfunction exists, the malfunction indicator lamp will light up during the 5 min. idling period. NOTICE: If the conditions in this test are not strictly followed, detection of the malfunction will not be possible. WIRING DIAGRAM See page EG–527 for the WIRING DIAGRAM