Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record all Freeze frame data.
3. With the scan tool, erase DTCs.
4. Turn the ignition off for 75 seconds.
5. Turn the ignition on.
6. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK THE (F857) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN OR SHORT TO GROUND
1. The (F855) 5-Volt Supply circuit also supplies the MAP Sensor, Fuel Pressure Sensor, Exhaust Pressure Sensor, and Crankcase Pressure Sensor.
  Are DTCs present for the MAP Sensor, Fuel Pressure Sensor, Exhaust Pressure Sensor, and Crankcase Pressure Sensor in addition to this DTC?
  
  Yes
  - Repair the (F857) 5-Volt Supply circuit for an open or short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
CHECK THE (K616) INLET AIR PRESSURE SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig 1: Inlet Air Temperature/Pressure Sensor Connector Pin ID
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Inlet Air Temperature/Pressure harness connector.
3. Measure the resistance between ground and the (K616) Inlet Air Pressure Signal circuit in the Inlet Air Temperature/Pressure Sensor harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the (K616) Inlet Air Pressure Signal circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 4.
CHECK FOR THE (K616) INLET AIR PRESSURE SIGNAL CIRCUIT SHORTED TO THE (K916) SENSOR GROUND CIRCUIT

Fig 2: Inlet Air Temperature/Pressure Sensor Connector Pin ID
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (K616) Inlet Air Pressure Signal circuit and (K916) Sensor Ground circuit at the Inlet Air Temperature/Pressure Sensor harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the short between the (K616) Inlet Air Pressure Signal circuit and (K916) Sensor Ground circuit.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 5.
CHECK THE (K616) INLET AIR PRESSURE SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE

Fig 3: Checking Inlet Air Pressure Signal Circuit For Open Or High Resistance
Courtesy of CHRYSLER LLC
1. Disconnect the PCM C1 harness connector.
2. Measure the resistance of the (K616) Inlet Air Pressure Signal circuit between the PCM C1 harness connector and the Inlet Air Temperature/Pressure harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 6.
  No
  - Repair the (K616) Inlet Air Pressure Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE INLET TEMPERATURE/PRESSURE SENSOR
1. Reconnect the PCM C1 harness connector.
2. Turn the ignition on.
3. While monitoring the scan tool, use a jumper to connect the (F855) 5-Volt Supply circuit to the (K616) Inlet Air Pressure Signal circuit at the Inlet Air Temperature/Pressure Sensor harness connector.
  Does the scan tool display DTC P2229 active?
  
  Yes
  - Replace the Inlet Temperature/Pressure Sensor.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the Powertrain Control Module in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .