Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 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 INTERMITTENT CONDITION - 6.7L .
CHECK THE INTAKE MANIFOLD TEMPERATURE CIRCUIT
1. Turn the ignition off.
2. Disconnect the T/P MAP sensor harness connector.
  NOTE:
  Check connectors - Clean/repair as necessary.
3. Measure the resistance from the Sensor ground (K916) to the Intake Manifold Temperature circuit (K21) across the terminals at the T/P MAP sensor harness connector.
  Is the resistance between 300 and 90k Ohms?
  
  Yes
  - Go To 3
  No
  - Replace the T/P MAP Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE (K21) INTAKE MANIFOLD TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
2. Disconnect the PCM C1 harness connector.
  NOTE:
  Check connectors - Clean/repair as necessary.
3. Measure the resistance between ground and the (K21) Intake Manifold Temperature Signal circuit at the T/P MAP sensor harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the (K21) Intake Manifold Temperature 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 (K21) INTAKE MANIFOLD TEMPERATURE SIGNAL CIRCUIT SHORTED TO THE (K916) SENSOR GROUND CIRCUIT
1. Measure the resistance between the (K21) Intake Manifold Temperature Signal circuit and the (K916) Sensor Ground circuit at the T/P MAP sensor harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the short between the (K21) Intake Manifold Temperature Signal circuit and the (K916) Sensor Ground circuit.
  - 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 .