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6E–236 4JH1 ENGINE DRIVEABILITY AND EMISSIONS Diagnostic Trouble Code (DTC) P1120 (Symptom Code 9) (Flash Code 21) Pedal/Throttle Position Sensor Voltage Supply Circuit Low Input Step Action Value(s) Yes No 1 Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to On Board Diagnostic (OBD) System Check 2 1. Connect the Tech 2. 2. Review and record the failure information. 3. Select “F0: Read DTC Infor As Stored By ECU” in “F0: Diagnostic Trouble Codes”. Is the DTC P1120 (Symptom Code 9) stored as — Go to Step 3 Refer to Diagnostic Aids
and Go to Step 3 3 1. Using the Tech 2, ignition “On” and engine “Off”. 2. Select “F1: Clear DTC Information” in “F0: Diagnostic Trouble Codes” with the Tech 2 and 3. Operate the vehicle and monitor the “F0: Read DTC Infor As Stored By ECU” in the “F0: Was the DTC P1120 (Symptom Code 9) stored in this — Go to Step 4 Refer to Diagnostic Aids and Go to Step 4 4 Check for poor/faulty connection at the TPS or ECM — Verify repair Go to Step 5 5 Visually check the TPS. — Go to Step 10 Go to Step 6 49 39 57 2 3 1 C-56 E-22 |