DTC P1123: TP Sensor Stuck Open: Condition

DTC is set when throttle opening angle is more than 50 percent, engine speed is more than 500 RPM, and Mass Air Flow (MAF) sensor reading is less than .6 lbs/Min. Possible causes are:

• TP sensor malfunction.
• MAF sensor malfunction.
• Poor connection or voltage drop in circuit.
• PCM malfunction.