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6E–319 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS Diagnosis Trouble Code(DTC) P1221 TPS1 – TPS2 Correlation(Circuit Performance) (Cont'd) Step No Yes Value(s) Action 6 1. Check the following circuits for an open, short to voltage, short to ground, or poor connection at the Throttle position sensor 1 circuit. Throttle position sensor 2 circuit. Throttle DC motor circuit. Throttle position sensor resistance. Throttle DC motor resistance. 2. If a problem is found, repair as necessary. Was a problem found? Vcc-GND 1–7k m SIG-GND change resistance 0.3 – 100 m Verify repair Go to Step 7 7 Replace the throttle valve. Is the action complete? — Go to Step 4 — 8 1. Check the following circuits for an open, short to voltage, short to ground, or poor connection at the D Accelerator position sensor 1 circuit. D Accelerator position sensor 2 circuit. D Accelerator position sensor 3 circuit. D Accelerator position sensor resistance. 2. If a problem is found, repair as necessary. Was a problem found? — Verify repair Go to Step 9 9 Replace the accelerator position sensor. Is the action complete? — Go to Step 10 — 10 Stored DTCs; — Go to applicable Go to Step 11 11 Stored DTCs; — Go to applicable Go to Step 12 12 Replace the PCM. IMPORTANT: The replacement PCM must be Refer to ON-Vehicle Service in Power Control Module and Sensors for procedures. And also refer to latest Service Bulletin. Check to see if the latest software is released or not. And then Down Load the LATEST PROGRAMMED Is the action complete? — Verify repair — |