Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
NOTE:
Diagnose any ASD related DTCs before continuing.
1. Start the engine.
2. With a scan tool, select View DTCs.
  NOTE:
  It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data.
  
  Is the DTC Active at this time?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK THE (F344) ASD RELAY OUTPUT CIRCUIT
1. Turn the ignition off.
2. Disconnect the Coil on Plug harness connector.
3. Ignition on, engine not running.
4. With a scan tool, actuate the ASD Relay.
5. Using a 12-volt test light connected to ground, probe the (F344) ASD Relay Output circuit in the Coil on Plug harness connector.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 3
  No
  - Repair the open or short to ground in the (F344) ASD Relay Output circuit between the PDC and Coil harness connector.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
    NOTE:
    Stop All Actuations.
IGNITION COIL
WARNING:
When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.
1. Using a 12-volt test light connected to a 12 volt source, probe the (K15) Coil Control 4 circuit.
2. Crank the engine for five seconds while observing the test light.
  What is the condition of the test light while cranking the engine?
  
  Brightly blinking.
  - Go To 4
  ON constantly.
  - Go To 5
  OFF constantly.
  - Go To 6
SPARK PLUG
1. Turn the ignition off.
2. Remove the Spark Plug(s) in accordance with the service information.
3. Inspect the Spark Plug(s) for the following conditions:
  - Cracks
  - Carbon Tracking
  - Foreign Material
  - Gap size out of specifications
  - Loose or broken electrode
  NOTE:
  Lightly tap the bottom of the spark plug on a solid surface. The electrode in the spark plug should not move.
  
  Were any of the above conditions present?
  
  Yes
  - Replace the Spark Plug in accordance with the service information.
    NOTE:
    If carbon tracking is found on the Spark Plug, inspect the boot on the Coil On Plug assembly for signs of damage and replace if necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace the Coil On Plug and Spark Plug in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK THE (K15) COIL CONTROL 4 CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the PCM C2 harness connector.
3. Measure the resistance between ground and the (K15) Coil Control 4 circuit in the Coil on Plug harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the (K15) Coil Control 4 circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 7
CHECK THE (K15) COIL CONTROL 4 CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Turn the ignition off.
2. Disconnect the PCM C2 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 GPEC Diagnostic Adaptor to perform the diagnosis.
3. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
4. Measure the resistance of the (K15) Coil Control 4 circuit from the Coil on Plug harness connector to the GPEC Adaptor.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 7
  No
  - Repair the (K15) Coil Control 4 circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil 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 Ignition Coil and the Powertrain Control Module connectors.
4. Perform any Technical Service Bulletins 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 (PCM) in accordance with the service information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .