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Possible Causes

Possible Causes
(K504) DRIVETRAIN 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(K504) DRIVETRAIN 5-VOLT SUPPLY CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
(K504) DRIVETRAIN 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K594) DRIVETRAIN SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE
(T313) MODE SENSOR SIGNAL CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
(K594) DRIVETRAIN SENSOR RETURN CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
(T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
DTCM POWER OR GROUND CIRCUIT FAULT
TRANSFER CASE SHIFT MOTOR
DTCM

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