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 (K21) INTAKE MANIFOLD TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
2. Ignition on.
3. Disconnect the 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 (K21) Intake Manifold Temperature Sensor Signal circuit at the T/P MAP sensor harness connector.
  Is the voltage above 5.1 Volts?
  
  Yes
  - Repair the (K21) Intake Manifold 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 T/P MAP SENSOR
1. Turn the ignition off.
2. Measure the resistance across terminals 3 and 4 of the T/P MAP sensor harness connector.
  Is the resistance between 300 and 90k Ohms?
  
  Yes
  - Go To 4
  No
  - Replace the T/P MAP Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
CHECK THE (K21) INTAKE MANIFOLD 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 (K21) Intake Manifold 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 (K21) Intake Manifold Temperature Sensor Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
CHECK THE (K916) T/P MAP RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Measure the resistance of the (K916) T/P Map Return 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) T/P Map Return circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .