Diagnostic Test
WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
- DTC IS ACTIVE NOTE: If P0627, P0628 or P0629 has set along with this DTC, diagnose those DTCs first before continuing.
- Ignition on, engine not running.
- With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go to step 2
No
- Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. Refer to DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- FUEL PUMP MODULE
- Disconnect the Fuel Pump Module harness connector.
- Ignition on, engine not running.
- Using the scan tool under the TIPM Actuators, actuate the Fuel Pump.
- With a 12-volt test light connected to ground, probe the (N1) Fuel Pump Control Output circuit at the Fuel Pump Module harness connector.
Does the test light illuminate brightly and flash on and off?
Yes
- Replace the Fuel Pump Module in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Go to step 3
- (N1) FUEL PUMP CONTROL OUTPUT CIRCUIT OPEN
- Turn the ignition off
- Disconnect the TIPM C7 harness connector.
- Measure the resistance of the (N1) Fuel Pump Control Output circuit between the TIPM C7 harness connector and the Fuel Pump Module harness connector.
Is the resistance below 5.0 Ohms?
Yes
- Go to step 4
No
- Repair the short to ground in the (N1) Fuel Pump Control Output circuit.
- Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- TOTALLY INTEGRATED POWER MODULE (TIPM) NOTE: Before continuing, check the TIPM harness connector terminals for corrosion, damage or terminal push out. Repair as necessary.
- Using the schematics as a guide, inspect the wire harness and connectors.
- Pay particular attention to all Power and Ground circuits.
Were any problems found?
Yes
- Repair as necessary.
- Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Replace the Totally Integrated Power Module in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .