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Possible Causes

Possible Causes 
(K504) DRIVETRAIN 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(K504) DRIVETRAIN 5-VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
(K504) DRIVETRAIN 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
(T313) MODE SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
(T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
(K594) DRIVETRAIN SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE
(K594) DRIVETRAIN SENSOR RETURN CIRCUIT OPEN OR HIGH RESISTANCE
TRANSFER CASE MOTOR/ENCODER
DRIVE TRAIN CONTROL MODULE (DTCM)