Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, Clear the DTCs in the Powertrain Control Module (PCM).
3. With the scan tool, actuate the EGR Valve Solenoid Duty Cycle.
4. 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. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K35) EGR CONTROL CIRCUIT SHORTED TO VOLTAGE

Fig 1: CHECKING EGR CONTROL CIRCUIT FOR SHORT TO VOLTAGE
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Exhaust Gas Recirculation Valve harness connector.
3. Disconnect the Powertrain Control Module (PCM) C2 harness connector.
4. Turn the ignition on.
5. Measure the voltage of the (K35) EGR Control circuit in the Exhaust Gas Recirculation Valve harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (K35) EGR Control circuit for a short to voltage.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 3
(K35) EGR CONTROL CIRCUIT SHORTED TO GROUND

Fig 2: Checking EGR Control Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance between ground and the (K35) EGR Control circuit in the Exhaust Gas Recirculation Valve harness connector.
  Is the resistance above 100 Ohms?
  
  Yes
  - Go to step 4
  No
  - Repair the (K35) EGR Control circuit for a short to ground.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K35) EGR CONTROL CIRCUIT OPEN OR HIGH RESISTANCE

Fig 3: Checking EGR Control Circuit
Courtesy of CHRYSLER LLC

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 8815 to perform diagnosis.
1. Measure the resistance of the (K35) EGR Control circuit between the Exhaust Gas Recirculation Valve harness connector and the appropriate terminal of PCM Pinout Box 8815.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go to step 5
  No
  - Repair the (K35) EGR Control circuit for an open circuit or high resistance.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(Z904) GROUND CIRCUIT OPEN OR HIGH RESISTANCE

Fig 4: CHECKING GROUND CIRCUIT FOR OPEN OR HIGH RESISTANCE
Courtesy of CHRYSLER LLC
1. Using a 12-volt test light connected to 12 volts, check the (Z904) Ground circuit in the Exhaust Gas Recirculation Valve harness connector.
  NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
  
  Is the test light illuminated and bright?
  
  Yes
  - Go to step 6
  No
  - Repair the (Z904) Ground circuit for an open circuit or high resistance.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
EXHAUST GAS RECIRCULATION VALVE
1. Connect the Powertrain Control Module (PCM) C2 harness connector.
2. Turn the ignition on.
3. With the scan tool, actuate the EGR Valve Solenoid Duty Cycle.
4. Using a 12-volt test light connected to ground, check the (K35) EGR Control circuit in the Exhaust Gas Recirculation Valve harness connector.
  NOTE: If the DTC is active, the actuation test may not be allowed by the PCM. It may be necessary to clear the DTCs before starting the actuation.
  
  NOTE: The voltage supplied to the solenoid circuit during the actuation may be less than the battery voltage. The test light should be illuminated, but may not be as bright as a direct connection to the battery.
  
  Is the test light illuminated during the actuation?
  
  Yes
  - Replace the Exhaust Gas Recirculation Valve in accordance with the Service Information.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 7
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Exhaust Gas Recirculation Valve 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.
4. Refer to any Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .