Diagnostic Test

1. The battery must be fully charged and in good condition. A low charged battery may produce invalid test results. If the battery is low, charge the battery and then attempt to start the vehicle by cranking the engine for 15 seconds, three consecutive times. This will allow any DTCs to set that may have been erased due to a dead battery.
2. Try to communicate with PCM using a scan tool. If communication between the scan tool and PCM is not allowed inspect fuses. If the fuses appear ok, for the No Response from PCM diagnostic procedure. Refer to NO RESPONSE FROM PCM (POWERTRAIN CONTROL MODULE) - GAS .
3. Read the PCM DTCs with the scan tool. If any DTCs are present, they must be repaired before continuing with any other No Start diagnostic tests. for the related P-code that is reported by the PCM. Refer to 3.7L/4.7L/5.7L - DIAGNOSTIC CODE INDEX - NGC - 1500 & 2500 .
4. Make sure that the Bus is functional. Attempt to communicate with the Instrument Cluster and Wireless Ignition Node. If you are unable to establish communication with any modules, for the Diagnostic CAN C diagnostic procedures. Refer to DIAGNOSIS AND TESTING .
5. The Wireless Ignition Node must be operating properly. Check for communication with the scan tool and check for DTCs that may be stored in the Wireless Ignition Node. Refer to Diagnosis and Testing . Repair the DTCs before continuing.
6. If no DTCs are found, using the scan tool, select Clear PCM (BATT Disconnect).
7. Crank the engine several times. Using the scan tool, View DTCs. If a DTC is present go to and perform the appropriate diagnostic procedure before continuing.

   Were any problems found?

   Yes 

   • Repair as necessary.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  2.

1. Check for any open fuses in the TIPM or Junction Block that may be related to the No Start condition.

   Are any of the fuses open?

   Yes 

   • Check the related circuit(s) for a short to ground and replace the open fuse.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  3.

1. Turn the ignition off.
2. Disconnect the CKP Sensor.
3. Attempt to start the engine.

   Does the engine start?

   Yes 

   • Replace the Crankshaft Position Sensor in accordance with the Service Information.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  4.

1. Turn the ignition off.
2. Connect the CKP Sensor.
3. Disconnect the CMP Sensor.
4. Attempt to start the engine.

   Does the engine start?

   Yes 

   • Replace the Camshaft Position Sensor in accordance with the Service Information.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Go To  5.

Fig 1: Using 12 Volt Test Light Connected To Ground To Check PCM Fused B+ Circuits

Courtesy of CHRYSLER LLC

1. Turn the ignition off.
2. Disconnect the C1 PCM harness connector.
   CAUTION:

   Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis.

3. Using a 12-volt test light connected to ground probe the Fused B+ circuits.

   Does the test light illuminate brightly?

   Yes 

   • Go To  6.

   No 

   • Repair the open or short to ground in the Fused B+ circuit.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Turn the ignition off.
2. Disconnect the C5 TIPM harness connector.
3. Disconnect the C1 and C3 PCM harness connectors.
4. Measure the resistance of the ASD Control Output circuit from the C5 TIPM harness connector to the appropriate terminals of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position), Ignition coil, and the fuel injectors.

   Is the resistance below 5.0 Ohms?

   Yes 

   • Go To  7.

   No 

   • Repair the open in the (K342) ASD Relay Output circuits.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

1. Verify that the Fuel tank is not empty before continuing.
2. Follow the diagnostics for Checking the Fuel Delivery System . Refer to appropriate Electrical Diagnostics article.

   Was the No Start condition solved after following the Checking the Fuel Delivery System diagnostic procedure?

   Yes 

   • Test Complete.

   No 

   • Go To  8.

Check for any of the following conditions/mechanical problems:

• ENGINE COMPRESSION - must be within specifications.
• ENGINE EXHAUST SYSTEM - must be free of any restrictions or leaks.
• ENGINE VALVE TIMING - must be within specifications, check for broken timing components

Are there any engine mechanical problems?

Yes 

• Repair as necessary.
• Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

No 

• Go To  9.

1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the related Sensors and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related Sensors and the Powertrain Control Module connectors.
4. Refer to any Technical Service Bulletins (TSBs) that may apply.

   Were there any problems found?

   Yes 

   • Repair as necessary.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

   No 

   • Replace and program the Powertrain Control Module per Service Information.
   • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .