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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 247 (3.6L - DTCS P000A To P0155) >> DTC Troubleshooting >> P0123-Throttle Position Sensor 1 Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
TPS SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
TPS SIGNAL 1 CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT
TPS SIGNAL 1 CIRCUIT SHORTED TO THE ETC MOTOR (+) CIRCUIT
TPS SIGNAL 1 CIRCUIT SHORTED TO THE ETC MOTOR (-) CIRCUIT
TPS SIGNAL 1 CIRCUIT OPEN OR HIGH RESISTANCE
TPS SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE
THROTTLE BODY
POWERTRAIN CONTROL MODULE (PCM)

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