Workshop Repair Manuals

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jeep Workshop Repair Guides


Grand Cherokee 2WD V6-3.7L (2008)

Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure > System Information > System Diagnosis > Fuel Delivery Check > Page 3479

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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

Powertrain Management > Tune-up and Engine Performance Checks > Fuel Pressure > System Information > System Diagnosis > Fuel Delivery Check > Page 3479

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