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.

DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE
NOTE: If P0627, P0628 or P0629 has set along with this DTC, diagnose those DTCs first before continuing.
1. Turn the ignition on, engine not running.
2. Using 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

Fig 1: Checking Fuel Pump Control Output Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Fuel Pump Module harness connector.
3. Turn the ignition on, engine not running.
4. Using the scan tool under the TIPM Actuators, actuate the Fuel Pump.
5. With a 12-volt test light connected to ground, probe the (N1) Fuel Pump Control Output circuit at the Fuel Pump Module harness connector.
  NOTE: The test light should be illuminated and bright. Compared the brightness to that of a direct connection to the battery.
  
  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 SHORTED TO GROUND

Fig 2: Checking Fuel Pump Control Output Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off
2. Disconnect the TIPM C7 harness connector.
3. Measure the resistance between ground and the (N1) Fuel Pump Control Output circuit at the TIPM C7 harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - 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 .
  No
  - Go to step 4
TOTALLY INTEGRATED POWER MODULE (TIPM)
NOTE: Before continuing, check the TIPM harness connector terminals for corrosion, damage or terminal push out. Repair as necessary.
1. Using the schematics as a guide, inspect the wire harness and connectors.
2. 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 (TIPM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .