Diagnostic Test

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.

DTC IS ACTIVE
1. Start the engine and allow it to reach operating temperature. If the engine will not start, crank the engine for several seconds.
  WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.
2. With the scan tool, select View DTCs.
  Is the status Active for this DTC?
  
  Yes
  - Go to step 2
  No
  - Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
(K857) 5 VOLT SUPPLY CIRCUIT VOLTAGE

Fig 1: Checking 5-Volt Supply Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Camshaft 1/1 Position Sensor connector.
3. Turn the ignition on.
4. Measure the voltage of the (K857) 5 Volt Supply circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is the voltage between 4.5 and 5.5 volts?
  
  Yes
  - Go to step 3
  No
  - Go to step 7
(K44) CMP 1/1 SIGNAL CIRCUIT VOLTAGE

Fig 2: Checking CMP Sensor Circuit
Courtesy of CHRYSLER LLC
1. Measure the voltage of the (K44) CMP 1/1 Signal circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is the voltage between 4.5 and 5.5 volts?
  
  Yes
  - Go to step 4
  No
  - Go to step 11
(K900) SENSOR GROUND CIRCUIT TEST

Fig 3: Checking CMP Sensor Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Using a 12 volt test light connected to 12 volts, check the (K900) Sensor Ground in the Camshaft 1/1 Position Sensor harness connector.
  NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.
  
  Is the test light illuminated and bright?
  
  Yes
  - Go to step 5
  No
  - Go to step 15
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K44) CMP 1/1 SIGNAL CIRCUIT

Fig 4: Checking 5-Volt Supply Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (K857) 5 Volt Supply circuit and the (K44) CMP 1/1 Signal circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is the resistance above 100 ohms?
  
  Yes
  - Go to step 6
  No
  - Repair the (K857) 5 Volt Supply circuit for a short to the (K44) CMP 1/1 Signal circuit.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
CAMSHAFT 1/2 POSITION SENSOR IRREGULAR SIGNAL

Fig 5: Checking Camshaft 1/2 Position Sensor Irregular Signal
Courtesy of CHRYSLER LLC
1. Connect the Camshaft 1/1 Position Sensor connector.
2. Using a lab scope and the Miller special tool #6801, backprobe the (K441) CMP 1/2 Signal circuit in the Camshaft 1/2 Position Sensor harness connector.
3. Ignition on, engine not running.
4. Wiggle the related wire harness and lightly tap on the Camshaft 1/2 Position Sensor while monitoring the lab scope screen.
5. Start the engine.
6. Monitor the Camshaft 1/2 Position Sensor signal on the lab scope screen.
  Were any Camshaft 1/2 Position Sensor signals irregular or missing?
  
  Yes
  - Go to step 17
  No
  - Go to step 16
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE

Fig 6: Checking 5-Volt Supply Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Powertrain Control Module (PCM) connector.
3. Turn the ignition on.
4. Measure the voltage of the (K857) 5 Volt Supply circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (K857) 5 Volt Supply circuit for a short to voltage.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 8
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND

Fig 7: Checking 5-Volt Supply Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance between ground and the (K857) 5 Volt Supply circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is the resistance above 100 ohms?
  
  Yes
  - Go to step 9
  No
  - Repair the (K857) 5 Volt Supply circuit for a short to ground.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT

Fig 8: Checking 5-Volt Supply Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (K857) 5 Volt Supply circuit and the (K900) Sensor Ground circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is the resistance above 100 ohms?
  
  Yes
  - Go to step 10
  No
  - Repair the (K857) 5 Volt Supply circuit for a short to the (K900) Sensor Ground circuit.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K857) 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE

Fig 9: Checking 5-Volt Supply Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (K857) 5 Volt Supply circuit between the Camshaft 1/1 Position Sensor harness connector and the Powertrain Control Module (PCM) harness connector.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Go to step 18
  No
  - Repair the (K857) 5 Volt Supply circuit for an open circuit or high resistance.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K44) CMP 1/1 SIGNAL CIRCUIT SHORTED TO VOLTAGE

Fig 10: Checking CMP Sensor Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Powertrain Control Module (PCM) connector.
3. Turn the ignition on.
4. Measure the voltage of the (K44) CMP 1/1 Signal circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (K44) CMP 1/1 Signal circuit for a short to voltage.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 12
(K44) CMP 1/1 SIGNAL CIRCUIT SHORTED TO GROUND

Fig 11: Checking CMP Sensor Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance between ground and the (K44) CMP 1/1 Signal circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is the resistance above 100 ohms?
  
  Yes
  - Go to step 13
  No
  - Repair the (K44) CMP 1/1 Signal circuit for a short to ground.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K44) CMP 1/1 SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT

Fig 12: Checking CMP Sensor Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (K44) CMP 1/1 Signal circuit and the (K900) Sensor Ground circuit in the Camshaft 1/1 Position Sensor harness connector.
  Is the resistance above 100 ohms?
  
  Yes
  - Go to step 14
  No
  - Repair the (K44) CMP 1/1 Signal circuit for a short to the (K900) Sensor Ground circuit.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K44) CMP 1/1 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE

Fig 13: Checking CMP Sensor Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (K44) CMP 1/1 Signal circuit between the Camshaft 1/1 Position Sensor harness connector and the Powertrain Control Module (PCM) harness connector.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Go to step 18
  No
  - Repair the (K44) CMP 1/1 Signal circuit for an open circuit or high resistance.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K900) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE

Fig 14: Checking CMP Sensor Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Powertrain Control Module (PCM) connector.
3. Measure the resistance of the (K900) Sensor Ground circuit between the Camshaft 1/1 Position Sensor harness connector and the Powertrain Control Module (PCM) harness connector.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Go to step 18
  No
  - Repair the (K900) Sensor Ground circuit for an open circuit or high resistance.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
CAMSHAFT 1/1 POSITION SENSOR
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Sensor and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Inspect the Camshaft 1/1 Position Sensor for conditions such as loose mounting screws, damage, or cracks.
5. If no other problems are found, remove the Camshaft 1/1 Position Sensor.
6. Inspect the Camshaft 1/1 Position Sensor and mounting area for any condition that would result in an incorrect signal, such as damage, foreign material, or excessive movement.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Replace the Camshaft 1/1 Position Sensor.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
CAMSHAFT 1/2 POSITION SENSOR
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Position Sensor and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Inspect the Camshaft 1/2 Position Sensor for conditions such as loose mounting screws, damage, or cracks.
5. If no other problems are found, remove the Camshaft 1/2 Position Sensor.
6. Inspect the Camshaft 1/2 Position Sensor and mounting area for any condition that would result in an incorrect signal, such as damage, foreign material, or excessive movement.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Replace the Camshaft 1/2 Position Sensor.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
POWERTRAIN CONTROL MODULE (PCM)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/1 Position Sensor and the Powertrain Control Module (PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.
5. Look for the data to change or for the DTC to reset during the wiggle test.
6. Refer to any Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .