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Possible Causes

POSSIBLE CAUSES 
(F855) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(K122) TP SIGNAL 2 CIRCUIT SHORTED TO VOLTAGE
(F855) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K122) TP SIGNAL 2 CIRCUIT SHORTED TO GROUND
(F855) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K122) TP SIGNAL 2 CIRCUIT
(F855) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K922) TP SENSOR GROUND CIRCUIT
(K122) TP SIGNAL 2 CIRCUIT SHORTED TO THE (K922) TP SENSOR GROUND CIRCUIT
(F855) 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
(K122) TP SIGNAL 2 CIRCUIT OPEN OR HIGH RESISTANCE
(K922) TP 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  .