
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.