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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.

    NOTE:

    Diagnose and repair any Secondary Air system sensor signal or relay control circuit DTCs before proceeding with this procedure.

    1. Turn the ignition on.
    2. With the scan tool, select View DTCs and review the DTC environmental data for this DTC.

      Is the good trip counter greater than 0?

      Yes 

      No 

      • Go To  2
  2. AIR INJECTION SYSTEM COMPONENT INSPECTION 
    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. Turn the ignition off.
    2. Inspect the Secondary Air Pump Assembly, the Secondary Air Pump Valve and the connection tubes between them.
    3. Look for damage, obstructions, leaks, or any condition that would obstruct or interfere with air flow between the components.
    4. Using the wiring diagram/schematic as a guide, inspect the wiring and electrical connectors at the Secondary Air Pump Assembly.
    5. 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 

      • Go To  3
  3. SECONDARY AIR PUMP ACTUATION 
    1. Turn the ignition on.
    2. With the scan tool, actuate the Secondary Air Pump control to on.
    3. With the scan tool, monitor the MAF Sensor value.
      CAUTION:

      Do not allow the Air Pump actuation to run for more than 30 seconds at a time. Pump damage may occur. Allow the pump to cool down for at least 10 minutes between actuations.

      Is the MAF Sensor value greater than 25 kg/h with the pump actuated on?

      Yes 

      No 

      • Go To  4
  4. SECONDARY AIR CHECK VALVE 
    Fig 1: Air Injection Check Valve
    GC0099922Courtesy of CHRYSLER GROUP, LLC
    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. Turn the ignition off.
    2. Disconnect the air pump outlet tube (3) from the Secondary Air Check Valve (1).
    3. Turn the ignition on.
    4. With the scan tool, actuate the Secondary Air Pump control to on.
    5. With the scan tool, monitor the MAF Sensor value.
      CAUTION:

      Do not allow the Air Pump actuation to run for more than 30 seconds at a time. Pump damage may occur. Allow the pump to cool down for at least 10 minutes between actuations.

      Is the MAF Sensor value greater than 25 kg/h with the pump actuated on?

      Yes 

      • Replace the Secondary Air Check Valve in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  5
  5. GROUND CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 2: Using 12 Volt Test Light Connected To 12 Volts To Check Ground Circuit In Secondary Air Pump Harness Connector
    GC0099923Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the C2 Secondary Air Pump Assembly connector.
    3. Using a 12-volt test light connected to 12 volts, check the Ground circuit in the C2 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  6

      No 

      • Repair the Ground circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  6. (A929) FUSED B+ CIRCUIT OPEN 
    Fig 3: Using 12 Volt Test Light Connected To Ground To Check Secondary Air Pump Motor Relay Output Circuit
    GC0099924Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition on.
    2. Using a scan tool, actuate the Secondary Air Pump Relay.
    3. Using a 12-volt test light connected to ground, check the Secondary Air Pump Relay Output circuit in the C2 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  7

      No 

      • Go To  14
  7. FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 4: 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 C1 Secondary Air Pump Assembly harness connector.
    3. Turn the ignition on.
    4. Using a 12-volt test light connected to ground, check the Fused Ignition Switch 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  8

      No 

      • Repair the Fused Ignition Switch Output circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  8. (K157) MAF SENSOR SIGNAL CIRCUIT VOLTAGE 
    Fig 5: Measuring Voltage Of MAF Sensor Signal Circuit In C1 Secondary Air Pump Assembly Harness Connector
    GC0099925Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition on.
    2. Measure the voltage of the (K157) MAF Sensor Signal circuit in the C1 Secondary Air Pump Assembly harness connector.

      Is the voltage between 4.8 and 5.1 volts?

      Yes 

      • Go To  9

      No 

      • Go To  10
  9. (K957) MAF SENSOR GROUND CIRCUIT TEST 
    Fig 6: Using 12 Volt Test Light Connected To 12 Volts To Check MAF Sensor Ground Circuit In C1 Secondary Air Pump Assembly Harness Connector
    GC0099926Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Using a 12-volt test light connected to 12 volts, check the (K957) MAF Sensor Ground 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  15

      No 

      • Go To  13
  10. (K157) MAF SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE 
    Fig 7: Measuring Voltage Of MAF Sensor Signal Circuit In C1 Secondary Air Pump Assembly Harness Connector
    GC0099925Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Powertrain Control Module (PCM) C2 harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (K157) MAF Sensor Signal circuit in the C2 Secondary Air Pump Assembly harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (K157) MAF Sensor Signal circuit for a short to voltage.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  11
  11. (K157) MAF SENSOR SIGNAL CIRCUIT SHORTED TO GROUND 
    Fig 8: Measuring Resistance Between Ground & MAF Sensor Signal Circuit In C1 Secondary Air Pump Assembly Harness Connector
    GC0099927Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance between ground and the (K157) MAF Sensor Signal circuit in the C1 Secondary Air Pump Assembly harness connector.

      Is the resistance above 100 Ohms?

      Yes 

      • Go To  12

      No 

      • Repair the (K157) MAF Sensor Signal circuit for a short to ground.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  12. (K157) MAF SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 9: Checking MAF Sensor Signal Circuit For An Open Or High Resistance
    GC0149775Courtesy of CHRYSLER GROUP, LLC
    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.

    1. Measure the resistance of the (K157) MAF Sensor Signal circuit between the C1 Secondary Air Pump Assembly harness connector and the PCM C2 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  16

      No 

      • Repair the (K157) MAF Sensor Signal circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  13. (K957) MAF SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 10: Checking MAF Sensor Ground Circuit For An Open Or High Resistance
    GC0149774Courtesy of CHRYSLER GROUP, LLC
    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.

    1. Measure the resistance of the (K957) MAF Sensor Ground circuit between the C1 Secondary Air Pump Assembly harness connector and the PCM C2 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  16

      No 

      • Repair the (K957) MAF Sensor Ground for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  14. SECONDARY AIR PUMP RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE 
    1. Turn the ignition off.
    2. Remove the Secondary Air Pump Relay.
    3. Measure the resistance of the Secondary Air Pump Relay Output circuit between the relay connection and the C2 Secondary Air Pump Assembly harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  16

      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 .
  15. SECONDARY AIR PUMP ASSEMBLY 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Secondary Air Pump Assembly 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.

      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 .
  16. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Secondary Air Pump Assembly 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. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.
    5. Look for the data to change or for the DTC to reset during the wiggle test.
    6. 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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