Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. 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 diagnostic procedure. Refer to STANDARD PROCEDURE .
CHECK THE (K48) CHARGE AIR COOLER TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
2. Ignition on.
3. Disconnect the Temperature/Pressure Map (T/P MAP) Sensor harness connector.
  NOTE:
  Check connectors - Clean/repair as necessary.
4. With a voltmeter connected to ground, measure the voltage of the (K48) Charge Air Cooler Temperature Sensor Signal circuit at the T/P MAP Sensor harness connector.
  Is the voltage above 5.1 Volts?
  
  Yes
  - Repair the (K48) Charge Air Cooler Temperature Sensor Signal circuit for a short to voltage.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE TEMPERATURE/PRESSURE MAP SENSOR
1. Turn the ignition off.
2. Measure the resistance from the Sensor ground (K916) to the (K48) Charge Air Cooler Temperature circuit across the terminals at the T/P MAP Sensor.
  Is the resistance between 300 and 90k Ohms?
  
  Yes
  - Go To 4
  No
  - Replace the Temperature/Pressure MAP Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
CHECK THE (K48) CHARGE AIR COOLER TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Disconnect the PCM C1 harness connector.
  NOTE:
  Check connectors - Clean/repair as necessary.
2. Measure the resistance of the (K48) Charge Air Cooler Temperature Sensor Signal circuit between the T/P MAP Sensor harness connector and the PCM C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Repair the (K48) Charge Air Cooler Temperature Sensor Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
CHECK THE (K916) INTAKE MANIFOLD TEMPERATURE SENSOR RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Measure the resistance of the (K916) Intake Manifold Temperature Sensor Ground circuit between the T/P MAP Sensor harness connector and the PCM C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Powertrain Control Module in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Repair the (K916) Temperature/Pressure MAP Sensor ground circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .