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 at Crankshaft Position (CKP) sensor, Mass Air Flow (MAF) sensor, TP sensor and PCM connectors.
• Open or short in CKP sensor wire harness.
• Open or short in TP sensor wire harness.
• Open or short in MAF sensor wire harness.