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Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC IS ACTIVE 
    WARNING:

    The normal operating temperature of the exhaust system is very high. Never work around or attempt to service any part of the exhaust system until it has cooled. Special care should be taken when working near any part of the exhaust system. The temperature rises to a high level after a short period of engine operating time.

    1. Ignition on, engine not running.
    2. With the scan tool, clear DTCs in the Powertrain Control Module (PCM).
    3. With the scan tool, actuate the Secondary Air Flow Pump Relay control to ON or TOGGLE for five seconds.
    4. With the scan tool, stop the actuation.
    5. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2

      No 

  2. SECONDARY AIR PUMP RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 1: Using 12-Volt Test Light Connected To Ground To Check Fused ASD/Main Relay Output Circuit In C1 Secondary Air Pump Assembly Harness Connector
    GC0099892Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Secondary Air Pump Assembly C1 harness connector.
    3. Turn the ignition on.
    4. Using a 12-volt test light connected to ground, check the Secondary Air Pump Relay Output circuit in the C1 Secondary Air Pump Assembly 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  3

      No 

      • Repair the Secondary Air Pump Relay Output circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. (K644) SECONDARY AIR PUMP CONTROL CIRCUIT SHORTED TO GROUND 
    Fig 2: Checking Secondary Air Pump Control Circuit For Short To Ground
    GC0099893Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Powertrain Control Module (PCM) C2 harness connector.
    3. Measure the resistance between ground and the (K644) Secondary Air Pump Control circuit in the C1 Secondary Air Pump Assembly harness connector.

      Is the resistance below 100 Ohms?

      Yes 

      • Repair the (K644) Secondary Air Pump Control circuit for a short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  4
  4. (K644) SECONDARY AIR PUMP CONTROL CIRCUIT SHORTED TO VOLTAGE 
    Fig 3: Measuring Voltage Of Secondary Air Pump Control Circuit
    GC0099894Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition on.
    2. Measure the voltage of the (K644) Secondary Air Pump Control circuit in the C1 Secondary Air Pump Assembly harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (K644) Secondary Air Pump Control circuit for a short to voltage.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  5
  5. (K644) SECONDARY AIR PUMP CONTROL CIRCUIT OPEN OR HIGH RESISTANCE 
    1. Turn the ignition off.
      NOTE:

      When checking circuits at the Powertrain Control Module (PCM), be careful not to damage or distort the connector terminals. Improper measurement technique could result in poor pin to terminal contact.

    2. Measure the resistance of the (K644) Secondary Air Pump Control circuit between the C1 Secondary Air Pump Assembly harness connector and the Powertrain Control Module (PCM) harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  6

      No 

      • Repair the (K644) Secondary Air Pump Control circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  6. SECONDARY AIR PUMP ACTUATION 
    Fig 4: Using 12 Volt Test Light Connected To 12 Volts To Check Secondary Air Pump Control Circuit In C1 Secondary Air Pump Assembly Harness Connector
    GC0099896Courtesy of CHRYSLER GROUP, LLC
    1. Connect the Powertrain Control Module (PCM) C2 harness connector.
    2. Turn the ignition on.
    3. With the scan tool, actuate the Secondary Air Flow Pump control to the ON (100%) position.
    4. Using a 12-volt test light connected to 12 volts, check the (K644) Secondary Air Pump Control circuit in the C1 Secondary Air Pump Assembly harness connector.
      NOTE:

      The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

    5. With the scan tool, actuate the Secondary Air Flow Pump Relay control to the OFF (0%) position.
    6. Using a 12-volt test light connected to 12 volts, check the (K644) Secondary Air Pump Control circuit in the Secondary Air Pump Assembly harness connector.
      NOTE:

      The test light should not be illuminated with the control actuated OFF (0%).

      Is the test light illuminated when actuated ON and not illuminated when actuated OFF as described above?

      Yes 

      • Go To  7

      No 

      • Go To  8
  7. SECONDARY AIR PUMP ASSEMBLY 
    1. Turn the ignition off.
    2. Inspect the wiring and connectors between the Secondary Air Pump Assembly and the Powertrain Control Module (PCM).
    3. Look for any chafed, pierced, pinched, or partially broken wires.
    4. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the related connectors.

      Were any problems found?

      Yes 

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

      No 

      • Replace the Secondary Air Pump Assembly in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  8. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Secondary Air Flow Pump Relay 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 connectors.
    4. Perform any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

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

      No 

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