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Home >> Dodge and Ram >> 2018 >> Charger Pursuit, 5.7L Eng VIN T, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (3.6L - DTCS P000A To P0159) >> DTC Troubleshooting >> P0121-Throttle Position Sensor 1 Performance >> Possible Causes

Possible Causes

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Possible Causes
EXCESSIVE RESISTANCE IN THE TPS 1 SIGNAL CIRCUIT
EXCESSIVE RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT
EXCESSIVE RESISTANCE IN THE TPS RETURN CIRCUIT
THROTTLE BODY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .