EG–502 ENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING DTC No. | Number of MIL Blinks | Circuit | Diagnostic Trouble Code Detecting Condition 71 | [MIL blink pattern] | EGR System Malfunction | l EGR gas temp. and intake air temp. are 60°C (140°F) or less for A/T, 55°C (131°F) or less for 1 ~ 4 min. under conditions (a) and (b): (2 trip dectection logic)*3 (a) Engine coolant temp.: 60°C (140°F) or more (b) EGR operation possible (Example A/T in 3rd speed (5th for M/T), A/C ON, 96 km/h (60 mph), Flat road) BE3937 78 | [MIL blink pattern] | Fuel Pump Control Signal | (1) Open or short in fuel pump circuit for 1 sec. or more with engine speed 1,000 rpm or less (2 trip dectection logic)*3 (2) Open in input circuit for 1 sec. or more with engine speed 1,000 rpm or less (2 trip dectection logic)*3 (3) Open or short in diagnostic signal line (DI) fuel pump ECU with engine speed 1,000 rpm or less (2 trip dectection logic)*3 BE3937 51 | [MIL blink pattern] | Switch Condition Signal | (1) 3 sec. or more after engine starts, with closed throttle position switch OFF (IDL1) (2) Park/neutral position switch: OFF (Shift position in "R", "D", "2", or "L" position) (3) A/C switch ON BE3935 *1: "ON" displayed in the diagnostic mode column indicates that the Malfunction Indicator Lamp is lit up when a malfunction is defected. "OFF" indicates that the "CHECK" does not light up during malfunction diagnosis, even if a malfunction is detected. "N.A." indicates that the item is not included in malfunction diagnosis. *2: "○" in the memory column indicates that a diagnostic trouble code is recorded in the ECM memory when a malfunction occurs. "X" indicates that a diagnostic trouble code is not recorded in the ECM memory even if a malfunction occurs. Accordingly, output of diagnostic results in normal or test mode is done with the IG switch ON.