|
|
06– 78 06 Diagnosis Procedure a. Turn ignition switch to LOCK. a. Disconnect downstream oxygen sensor connector. a. Connect downstream oxygen sensor connector E-043. about 3 minutes. c. Using diagnostic tester, measure downstream oxygen sensor signal voltage, or using multimeter, measure 1 Check ECM ground point Repair or replace ground wire harness or NG 2 Check downstream oxygen sensor connector OK RT21060040 Repair or replace connector NG 3 Check downstream oxygen sensor signal OK ISO15031_PID03a Datastream name Close loop,u Value Unit 23.83 8 0.46 17.25 V kg/h % % relative air mass (calc.load value) acc. To SAE J1979 Air mass flow output voltage oxygen sensor downstream catalyst relative air charge Datastream RT21060140 Multimeter Connection Condition Specified Condition E-043 (2) - E-043 (1) Engine running Fluctuates slightly at about 0.45 V Go to step 7 OK NG |