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.
1. Ignition on, engine not running.
2. 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 .
VISUAL AND PHYSICAL CONNECTOR AND TERMINAL INSPECTION
1. Turn the ignition off.
2. Disconnect the TIPM C7 harness connector.
3. Disconnect the Fuel Pump harness connector.
4. Inspect the terminal and connector condition. Check for signs of corrosion build up or damage the would compromise the terminal to controller pin connector.
  NOTE: Make sure that all in-line connectors are inspected for corrosion and/or damage.
5. Visually inspect the wiring harness. Look for any chafed, pierced, pinched or partially broken wires hidden in the wire insulation.
6. Were any of the above conditions found?
  Yes
  - Repair or replace as necessary.
  - 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 HIGH RESISTANCE

Fig 1: Checking Fuel Pump Control Output Circuit
Courtesy of CHRYSLER LLC
1. With a jumper wire, connect one end to the (N1) Fuel Pump Control Output circuit in the Fuel Pump harness connector and the other to a clean chassis ground.
2. Using a 12-volt test light to battery voltage, probe the (N1) Fuel Pump Control Output circuit in the TIPM C7 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.
  
  Yes
  - Go to step 4
  No
  - Repair the high resistance in the (N1) Fuel Pump Control Output circuit.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(Z906) FUEL PUMP GROUND CIRCUIT

Fig 2: Checking Fuel Pump Ground Circuit
Courtesy of CHRYSLER LLC
1. Using a 12-volt test light to battery voltage, probe the (Z906) Fuel Pump Ground circuit in the Fuel Pump 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?
  
  Yes
  - Go to step 5
  No
  - Repair the excessive resistance in the (Z906) Fuel Pump Ground circuit.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(N1) FUEL PUMP CONTROL OUTPUT CIRCUIT

Fig 3: Checking Fuel Pump Control Output Circuit
Courtesy of CHRYSLER LLC
1. Reconnect the TIPM C7 harness connector.
2. Ignition on, engine not running.
3. With a scan tool in the TIPM Actuators, actuate the Fuel Pump.
4. Using the 12-volt test light connected to ground, probe the (N1) Fuel Pump Control Output circuit in the Fuel Pump harness connector.
  Does the test light illuminate brightly?
  
  Yes
  - Replace the Fuel Pump.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the TIPM in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .