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6E–382 6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS Diagnosis Truble Code(DTC) P1221 TPS1 – TPS2 correlation(Circuit Perfoemance)
Step Action Value(s) Yes No 1 Was the “On-Board (OBD) System Check”performed? — Go to Step 2 Go to OBD System Check 2 Was the “Electric Throttle Control (ETC) System — Go to Step 3 Go to ETC System Check 3 Following below the DTCs stored: P1120,P1220 Do any of the above require a repair? — Go to applicable Go to Step 4 4 1. Warming up the engine until the ECT rise at 80 ° C 2. Ignition “OFF”. alowly opening the throttle. NOTE: The value check of TPS must be performed in Does the TP angle increase steadily and evenly from Closed throttle ∼ 12% TPS2= 88 ∼ 94% Wide open throttle TPS1= 79 ∼ 83% TPS2= 19 ∼ 23% Go to Step 5 Go to Step 6 5 Was the DTC P1221 stored? — Go to Step 9 Check the procedure. Refer to Diagnostic Aids 6 1. Check the following items; D TPS1 and TPS2 signal curcuit for a short to D TPS1 and TPS2 sensor ground curcuit for high D TPS1 and TPS2 5 volt reference curcuit for 2. If aproblem found, repair wiring harness as necessary. Was a problem found? — Verify repair Go to Step 7 7 1. Re–observe the TP angle reading on the Tech 2 while slowly operating the acceleration pedal. Does the TP angle increase steadily and eventry from Closed throttle ∼ 12% TPS2= 88 ∼ 94% Wide open throttle TPS1= 79 ∼ 83% TPS2= 19 ∼ 23% Verify repair Go to Step 8 |