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. With the scan tool, read DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
WATER IN WIF SENSOR 2
1. Turn the ignition off.
2. Disconnect the WIF Sensor 2 harness connector.
3. Ignition on, engine not running.
  NOTE:
  Check connectors - Clean/repair as necessary.
4. Measure the voltage between the (K303) WIF Sensor 2 Signal circuit and the (K900) Sensor ground circuit at the WIF Sensor 2 harness connector.
  Is the voltage between 4.5 and 5.5 Volts?
  
  Yes
  - Replace the Water in Fuel Sensor 2 in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3
CHECK THE (K303) WIF SENSOR 2 FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the C1 PCM harness connector.
3. Turn the ignition on.
4. Measure the voltage on the (K303) WIF Sensor 2 Signal circuit at the WIF Sensor 2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (K303) WIF Sensor 2 Signal circuit for a short to voltage.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 4
CHECK THE (K303) WIF SENSOR 2 SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Turn the ignition off.
2. Measure the resistance on the (K303) WIF Sensor 2 Signal circuit from the WIF Sensor 2 harness connector to the C1 PCM harness connector.
  Is the resistance greater than 5.0 Ohms?
  
  Yes
  - Repair the (K303) WIF Sensor 2 Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 5
CHECK THE (K900) WIF SENSOR 2 GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Measure the resistance on the (K900) WIF Sensor 2 Ground circuit from the WIF Sensor 2 harness connector to ground.
  Is the resistance greater than 5.0 Ohms?
  
  Yes
  - Repair the (K900) WIF Sensor 2 Ground circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 6
WATER IN WIF SENSOR 1
1. Turn the ignition off.
2. Disconnect the WIF Sensor 1 harness connector.
3. Reconnect the PCM C1 harness connector.
4. Ignition on, engine not running.
  NOTE:
  Check connectors - Clean/repair as necessary.
5. Measure the voltage between the (G123) WIF Sensor 1 Signal circuit and the (K914) Sensor ground circuit at the WIF Sensor 1 harness connector.
  Is the voltage between 4.5 and 5.5 Volts?
  
  Yes
  - Replace the Water in Fuel Sensor 1 in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 7
CHECK THE (G123) WIF SENSOR 1 FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the C1 PCM harness connector.
3. Turn the ignition on.
4. Measure the voltage on the (G123) WIF Sensor 1 Signal circuit at the WIF Sensor 1 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (G123) WIF Sensor 1 Signal circuit for a short to voltage.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 8
CHECK THE (G123) WIF SENSOR 1 SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Turn the ignition off.
2. Measure the resistance on the (G123) WIF Sensor 1 Signal circuit from the WIF Sensor 1 harness connector to the C1 PCM harness connector.
  Is the resistance greater than 5.0 Ohms?
  
  Yes
  - Repair the (G123) WIF Sensor 1 Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 9
CHECK THE (K914) WIF SENSOR 1 GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Measure the resistance on the (K914) WIF Sensor 1 Ground circuit from the WIF Sensor 1 harness connector to ground.
  Is the resistance greater than 5.0 Ohms?
  
  Yes
  - Repair the (K914) WIF Sensor 1 Ground circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace and program the Powertrain Control Module in accordance with the service information. Refer to MODULE, POWERTRAIN CONTROL, 6.7L DIESEL, REMOVAL . Refer to PCM/ECM/TCM PROGRAMMING .
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .