EG–572 ENGINE – 2JZ–GTE ENGINE TROUBLESHOOTING INSPECTION PROCEDURE 1 Check output condition of diagnostic trouble code 51. P Setting the test mode. (1) Turn ignition switch OFF. (2) Connect terminals TE2 and E1 of DLC2. (3) Turn ignition switch ON. (For checking terminal IDL, disconnect the vacuum hose from the throttle body, then apply vacuum to the throttle opener (See page EG–292)). ((For checking terminal A/C, start the engine.)) (4) connect terminals TE1 and E1 of DLC2. C Check if code "51" is output by the malfunction indicator lamp. OK Condition Code Park/Neutral Position Switch (PNP) IP or N position Normal* IR, D, 2 or L position 51* Throttle Position Sensor (IDL1) Accelerator pedal released Normal* Accelerator pedal depressed 51* A/C Switch (A/C) A/C SW ON 51 A/C SW OFF Normal *: Before the STA signal is input (ST is not ON), diagnostic trouble code 43 is also output. Hint Diagnostic trouble code 42 is output with vehicle speed 5 km/h (3 mph) or below. H6914 CHECK OK NG IDL1...Go to step [2]. PNP....Go to page Eg–574. A/C....Go to step [3]. Proceed to next circuit inspection shown on matrix chart (See page Eg–514).