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
NOTE:
If there are any 5-Volt supply DTCs present, repair those DTCs before proceeding.
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. Start, or attempt to start the engine.
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 FOR PHYSICAL DAMAGE
1. Turn the ignition off.
2. Visually inspect the CKP Sensor, accessory belt, CKP Sensor connector, and the PCM C1 harness connector.
  Is there any physical damage present?
  
  Yes
  - Repair or replace the CKP Sensor, accessory belt, or harness.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
CHECK THE (K24) SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE

Fig 1: Checking CKP Signal Circuit For Open Or High Resistance
Courtesy of CHRYSLER LLC
1. Disconnect the PCM C1 harness connector.
2. Disconnect the CKP Sensor harness connector.
  NOTE:
  Check connectors - Clean/repair as necessary.
3. Measure the resistance of the (K24) CKP Signal circuit between the PCM C1 harness connector and the CKP Sensor harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4.
  No
  - Repair the (K24) CKP Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE (K824) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN/HIGH RESISTANCE

Fig 2: Checking CKP 5-Volt Supply Circuit For An Open Or High Resistance
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (K824) 5-Volt Supply circuit between the PCM C1 harness connector and the CKP Sensor harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 5.
  No
  - Repair the (K824) 5-Volt Supply circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE (K925) RETURN CIRCUIT FOR AN OPEN/HIGH RESISTANCE

Fig 3: Checking CKP Return Circuit For An Open Or High Resistance
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (K925) CKP Return circuit between the PCM C1 harness connector and the CKP Sensor harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 6.
  No
  - Repair the (K925) CKP Return circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK FOR THE (K24) SIGNAL CIRCUIT SHORTED TO THE (K925) RETURN CIRCUIT

Fig 4: Checking Signal Circuit For Short To Return Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (K24) CKP Signal circuit and the (K925) CKP Return circuit at the CKP Sensor harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the short between the (K24) CKP Signal circuit and the (K925) CKP Return circuit.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 7.
CHECK FOR THE (K24) SIGNAL CIRCUIT SHORTED TO THE (K824) 5-VOLT SUPPLY CIRCUIT

Fig 5: Checking Signal Circuit For Short To 5-Volt Supply Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (K24) CKP Signal circuit and the (K824) 5-Volt Supply circuit in the CKP Sensor harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the short between the (K24) CKP Signal circuit and the (K824) 5-Volt Supply circuit.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 8.
CHECK THE (K24) SIGNAL CIRCUIT FOR A SHORT GROUND

Fig 6: Checking CKP Signal Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (K24) CKP Signal circuit at the CKP Sensor harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the (K24) CKP Signal circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 9.
CHECK THE CKP SENSOR
1. Measure the resistance between the (K824) 5-Volt Supply circuit and the (K24) CKP Signal circuit through the CKP Sensor.
  Is the resistance between 900 and 1100 Ohms?
  
  Yes
  - Replace and program the Powertrain Control Module in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the CKP Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .