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Possible Causes

Possible Causes 
(F855) 5 VOLT SUPPLY CIRCUIT OPEN
(F855) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K23) APP SENSOR NO. 1 SIGNAL CIRCUIT OPEN
(K23) APP SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO GROUND
(K23) APP SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO THE (K167) APP SENSOR NO. 1 RETURN CIRCUIT
(K23) APP SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO THE (K400) APP SENSOR NO. 2 RETURN CIRCUIT
APP SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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