Commander 2WD V8-4.7L (2008)
line, the fuel system pressure must be released. Failure to follow these instructions can result in personal injury or death.
Turn the ignition off.
Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer.
Is the Fuel Inlet Strainer plugged?
Yes
-
Replace the Fuel Pump Inlet Strainer.
-
Perform the POWERTRAIN VERIFICATION TEST. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Powertrain Verification Test.
No
-
Replace the Fuel Pump Module.
-
Perform the POWERTRAIN VERIFICATION TEST. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Powertrain Verification Test.
5. (A109) FUEL PUMP RELAY OUTPUT CIRCUIT OPEN
Turn the ignition off.
Remove the Fuel Pump Relay from the IPM.
Disconnect the Fuel Pump Module harness connector.
Measure the resistance of the (A109) Fuel Pump Relay Output circuit from the relay connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
Yes
-
Replace the Fuel Pump Relay.
-
Perform the POWERTRAIN VERIFICATION TEST. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Powertrain Verification Test.
No
-
Repair the open in the (A109) Fuel Pump Relay Output circuit.
-
Perform the POWERTRAIN VERIFICATION TEST. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Powertrain Verification Test.
