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Possible Causes

Possible Causes 
FUEL PUMP MODULE WIRING OR CONNECTORS
INTERIOR OR EXTERIOR FUEL TANK DAMAGE
(N5) FUEL LEVEL SIGNAL 2 CIRCUIT SHORTED TO VOLTAGE
(N5) FUEL LEVEL SIGNAL 2 CIRCUIT SHORTED TO GROUND
(N5) FUEL LEVEL SIGNAL 2 CIRCUIT OPEN OR HIGH RESISTANCE
(N4) FUEL LEVEL SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(N4) FUEL LEVEL SIGNAL 1 CIRCUIT SHORTED TO GROUND
(N4) FUEL LEVEL SIGNAL 1 CIRCUIT OPEN OR HIGH RESISTANCE
(Z906) GROUND CIRCUIT OPEN OR HIGH RESISTANCE
FUEL LEVEL SENSOR 2
FUEL LEVEL SENSOR 1
INSTRUMENT CLUSTER (CCN)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .