EG–427 ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING INSPECTION PROCEDURE HINT: If diagnostic trouble codes "22" (engine coolant temperature sensor circuit), "24" (intake air temperature sensor circuit) and "41" (throttle position sensor circuit) are output simultaneously, E2 (sensor ground) may be open. 1 Check voltage between terminals THA and E2 of engine control module con– nector. ON SST ECM (B) 45, 65 THA BE6653 FI6496 E2 P (1) Connect SST (check harness "A"). (See page EG–404) SST 09990–01000 (2) Turn ignition switch ON. C Measure voltage between terminals THW and E2 of en- gine control module connector. OK Intake air temp. °C (°F) Voltage 20 (68) 0.5 – 3.4 V 60 (140) 0.2 – 1.0 V NG OK Check for intermittent problems. (See page EG–399) 2 Check intake air temp. sensor. Volume Air Flow Meter 2 1 FI6437 P Disconnect the volume air flow meter connector. C Measure voltage between terminals 1 and 2 of volume air flow meter connector. OK Resistance is within Acceptable Zone on chart. Resistance kΩ 30 20 10 6 3 2 1 0.6 0.5 0.3 0.2 0.1 Acceptable Intake air temp. °C (°F) Resistance 20 (68) 2 – 3 kΩ 60 (14) 0.4 – 0.7 kΩ -20 0 30 40 80 80 100 (-4) (32)(68)(104)(140)(176)(212) Temp. °C (°F) OK NG Replace intake air temp. sensor (Replace vol- ume air flow meter). 3 Check for open and short in harness and connector between engine control module and intake air temp. sensor (See page IN–30). OK NG Repair or replace harness or connector. Check and replace engine control module.