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
1. With the scan tool, read DTCs.
  Is DTC P065A active
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK FOR DIRTY OR LOOSE CONNECTIONS
1. Visually inspect the positive and negative connections at the battery.
2. Visually inspect the battery negative connections at the engine block.
  Are the connections tight and free of corrosion?
  
  Yes
  - Go To 3.
  No
  - Clean and/or tighten the connections.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK FOR ADD-ON OR ACCESSORY WIRES AT BATTERY TERMINAL
1. Check for add-on or accessory wiring at positive (+) terminal of the battery.
  Are there any damaged wires at the battery?
  
  Yes
  - Remove defective or miss wired add-on or accessory wiring from battery.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 4.
CHECK FOR HIGH RESISTANCE IN THE B+ CIRCUIT
1. Measure the voltage between the B+ post of the generator and the B+ post of the battery while the engine is running.
  Is the voltage above 0.4 Volts?
  
  Yes
  - Repair the high resistance in the B+ circuit from battery to the generator.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 5.
CHECK FOR HIGH RESISTANCE IN THE B+ CROSS OVER CABLE
1. Measure the voltage between the B+ post of the generator and the B+ post of the right side battery to the left side battery while the engine is running.
  Is the voltage above 0.4 Volts?
  
  Yes
  - Repair the high resistance in the B+ cross over cable from right side battery to left side battery.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 6.
CHECK FOR HIGH RESISTANCE IN THE GROUND CIRCUIT
1. Measure the voltage between the generator case and the B- post of the battery.
  Is the voltage above 0.1 Volts?
  
  Yes
  - Repair the high resistance in the ground circuit.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 7.
GENERATOR
1. Turn the ignition off.
2. Disconnect the Generator field harness connector.
  NOTE:
  Check connectors - Clean/repair as necessary.
3. Measure the resistance between the generator field terminals at the generator.
  Is the resistance between 0.5 and 15.0 Ohms?
  
  Yes
  - Go To 8.
  No
  - Replace the Generator in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
POWERTRAIN CONTROL MODULE (PCM)
1. Disconnect the PCM connectors.
2. Measure and record the voltage between battery positive circuit of the PCM harness connector and the battery negative circuits of the PCM harness connector.
3. Reconnect the PCM connectors.
4. Use the scan tool to measure and record battery voltage.
5. Compare the voltage reading from the voltmeter with that of the scan tool.
  Are the readings within 3.0 Volts of each other?
  
  Yes
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
  No
  - 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 .