Trouble Code P2563?!?
dessler
03-19-2009, 05:42 PM
My 07 Chevy 6.6 Duramax (lbz) 2500HD is giving me a P2563 code and I cant find any info about it. If any one has some input it would be greatly appreciated.
RahX
03-19-2009, 05:57 PM
DTC P2563
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Diagnostic System Check - Vehicle
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provide an overview of each diagnostic category.
DTC Descriptor
DTC P2563
* Turbocharger Boost Control Position Sensor Performance
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The position of the turbocharger vanes are controlled by the engine control module (ECM). The ECM utilizes a turbocharger vane control solenoid to control the position of the turbocharger vanes and a turbocharger vane position sensor to verify the position of the vanes. The ECM will vary the position of the vanes depending on engine load requirements. The TC vane position sensor provides the ECM with a signal voltage through the sensor signal circuit.
The ECM provides the TC vane position sensor with a 5-volt reference circuit and a ground on the low reference circuit.
Conditions for Running the DTC
* DTCs P0047, P0048, P2564, or P2565 are not set.
* The engine has been running for greater than 30 seconds .
* DTC P2563 runs continuously when the above conditions are met.
Conditions for Setting the DTC
The ECM detects that the difference between turbocharger actual vane position and the desired vane position is 15 percent less than or greater than a calibrated value for greater than 5 seconds .
Action Taken When the DTC Sets
DTC P2563 is a Type B DTC.
Conditions for Clearing the DTC
DTC P2563 is a Type B DTC.
Diagnostic Aids
* Verify that any electrical aftermarket devices are properly connected and grounded. Refer to Checking Aftermarket Accessories in Diagnostic Aids. See: Diagrams\Diagnostic Aids
* A MAP sensor that is skewed or bias may cause this DTC to set.
* A restricted oil supply feed to the turbocharger may cause this DTC to set. Refer to Turbocharger Lack of Oil Supply.
Circuit/System Verification
1. Verify that DTCs P003A, P0047, P0048, P0698, P0699, P2564, P2565 are not set.
¤ If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. See: Diagnostic Trouble Code Descriptions\Diagnostic Trouble Code (DTC) List - Vehicle
2. Engine running, observe the TC Vane Position Sensor and the desired TC Vane Position Sensor parameters. Command the TC vane position sensor in 5 percent increments, from 0-100 percent . The TC Vane Position Sensor and the Desired TC Vane Position parameters should remain within 2 percent of each other.
3. Engine running at idle speed, observe the scan tool TC Vane Position Sensor and the Desired TC Vane Position parameters while slowly increasing the engine speed to 2,500 RPM and slowly returning to idle speed. The TC Vane Position Sensor parameter should remain within 2 percent of the Desired TC Vane Position parameter throughout the engine speed range.
4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
Important:
* Perform the Circuit/System Verification before proceeding with the Circuit/System Testing.
* Perform the Repair Verification after completing the Circuit/System Testing.
Ignition OFF, disconnect the harness connector at the TC vane position solenoid.
1. Connect the J 34730-405 between the TC vane position solenoid high control and low control circuits, terminal B and terminal A. Important: When the engine coolant temperature is less than 70°C (158°F), the test lamp will change brightness when commanded with a scan tool. When the engine coolant temperatures are above 70°C (158°F), the test lamp will flash ON and OFF without commands from a scan tool.
2. Engine running, engine coolant temperature (ECT) sensor 1 must be less than 70°C (158°F) . Command the TC Vane Pos. Ctrl. Solenoid ON and OFF with a scan tool. The test lamp should change from bright to dim, when changing between the commanded states.
¤ If the test lamp does not change from bright to dim with each command, test the TC vane position solenoid high control circuit terminal A and low control circuit terminal B for a short to ground, open, high resistance, or short to voltage. If the circuits test normal, replace the ECM.
Important: Resistance of the TC control solenoid will vary with the temperature.
3. Ignition OFF, measure the resistance of the TC vane position control solenoid. The reading should be between 2-7 ohms .
¤ If the resistance is not within the specified range, replace the TC vane position control solenoid.
4. Test for infinite resistance between each TC vane position control solenoid terminal and the TC control solenoid housing.
¤ If less than infinite resistance, replace the TC control solenoid.
5. Disconnect the harness connectors at the ECM, and TC vane position sensor.
6. Test for less than 5 ohms of resistance on all circuits between the following terminals:
o The ECM C1 solenoid high control circuit terminal 48 to TC vane position control solenoid terminal A.
o The ECM C1 solenoid low control circuit terminal 96 to TC control solenoid terminal B.
o The ECM C1 sensor signal circuit terminal 20 to TC vane position sensor terminal B.
o The ECM C1 sensor low reference terminal 63 to TC vane position sensor terminal C.
o The ECM C1 sensor 5-volt reference terminal 13 to TC vane position sensor terminal D.
¤ If the resistance is over 5 ohms , repair the high resistance in the affected circuit.
7. Connect the ECM connectors. Test the TC vane position sensor.
8. Install and connect the TC vane position sensor.
9. Command the turbocharger TC vane position sensor from 0 percent to 100 percent while observing the TC Vane Position Sensor Volts parameter. The voltage should increment smoothly and gradually from approximately 1.0 volt to greater than 3.5 volt at 100 percent .
¤ If the voltage parameter does not change gradually and smoothly, replace the TC control solenoid.
10. Inspect the turbocharger for debris, damage, or sticking vanes.
11. If all circuits, the TC vane position control solenoid, and the TC vane position sensor tests are normal, replace the turbocharger assembly.
Component Testing
Important: Perform the Circuit/System Testing in order to verify the integrity of the TC vane position sensor circuits before proceeding with the Component Testing.
TC Vane Position Sensor
1. Remove the TC vane position sensor.
2. Connect the TC vane position sensor harness connector.
3. Ignition ON, observe the scan tool TC Vane Position Sensor parameter for a smooth percentage change while slowly depressing the button at the end of the TC vane position sensor. The percentage change should increment slowly without any spikes or dropouts.
¤ If the TC Vane Position parameter drops out or spikes, replace the TC vane position sensor.
Repair Instructions
Perform the Turbocharger Learn, then review the DTC information with a scan tool. See: Fuel Delivery and Air Induction\Turbocharger\Service and Repair\Procedures
* Exhaust Particulate Filter Cleaning (LMM DPF Regeneration Enable) Exhaust Particulate Filter Cleaning (LMM DPF Service Regeneration) for Service Regeneration
* Turbocharger Control Solenoid Valve Replacement
* Turbocharger Vane Position Sensor Replacement
* Turbocharger Removal
* Turbocharger Oil Feed Pipe Replacement
* Refer to Programming and Relearning for setup and programming. See: Testing and Inspection\Programming and Relearning
Repair Verification
Notice: Refer to Diesel Particulate Filter (DPF) Service Regeneration Notice.
Engine running, observe the TC Vane Position Sensor and the Desired TC Vane Position parameters. Slowly increase the engine speed to 2,500 RPM, and slowly return the engine speed to idle. The TC Vane Position Sensor parameter should remain near or equal to the desired TC Vane Position parameter.
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Diagnostic System Check - Vehicle
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provide an overview of each diagnostic category.
DTC Descriptor
DTC P2563
* Turbocharger Boost Control Position Sensor Performance
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The position of the turbocharger vanes are controlled by the engine control module (ECM). The ECM utilizes a turbocharger vane control solenoid to control the position of the turbocharger vanes and a turbocharger vane position sensor to verify the position of the vanes. The ECM will vary the position of the vanes depending on engine load requirements. The TC vane position sensor provides the ECM with a signal voltage through the sensor signal circuit.
The ECM provides the TC vane position sensor with a 5-volt reference circuit and a ground on the low reference circuit.
Conditions for Running the DTC
* DTCs P0047, P0048, P2564, or P2565 are not set.
* The engine has been running for greater than 30 seconds .
* DTC P2563 runs continuously when the above conditions are met.
Conditions for Setting the DTC
The ECM detects that the difference between turbocharger actual vane position and the desired vane position is 15 percent less than or greater than a calibrated value for greater than 5 seconds .
Action Taken When the DTC Sets
DTC P2563 is a Type B DTC.
Conditions for Clearing the DTC
DTC P2563 is a Type B DTC.
Diagnostic Aids
* Verify that any electrical aftermarket devices are properly connected and grounded. Refer to Checking Aftermarket Accessories in Diagnostic Aids. See: Diagrams\Diagnostic Aids
* A MAP sensor that is skewed or bias may cause this DTC to set.
* A restricted oil supply feed to the turbocharger may cause this DTC to set. Refer to Turbocharger Lack of Oil Supply.
Circuit/System Verification
1. Verify that DTCs P003A, P0047, P0048, P0698, P0699, P2564, P2565 are not set.
¤ If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. See: Diagnostic Trouble Code Descriptions\Diagnostic Trouble Code (DTC) List - Vehicle
2. Engine running, observe the TC Vane Position Sensor and the desired TC Vane Position Sensor parameters. Command the TC vane position sensor in 5 percent increments, from 0-100 percent . The TC Vane Position Sensor and the Desired TC Vane Position parameters should remain within 2 percent of each other.
3. Engine running at idle speed, observe the scan tool TC Vane Position Sensor and the Desired TC Vane Position parameters while slowly increasing the engine speed to 2,500 RPM and slowly returning to idle speed. The TC Vane Position Sensor parameter should remain within 2 percent of the Desired TC Vane Position parameter throughout the engine speed range.
4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
Important:
* Perform the Circuit/System Verification before proceeding with the Circuit/System Testing.
* Perform the Repair Verification after completing the Circuit/System Testing.
Ignition OFF, disconnect the harness connector at the TC vane position solenoid.
1. Connect the J 34730-405 between the TC vane position solenoid high control and low control circuits, terminal B and terminal A. Important: When the engine coolant temperature is less than 70°C (158°F), the test lamp will change brightness when commanded with a scan tool. When the engine coolant temperatures are above 70°C (158°F), the test lamp will flash ON and OFF without commands from a scan tool.
2. Engine running, engine coolant temperature (ECT) sensor 1 must be less than 70°C (158°F) . Command the TC Vane Pos. Ctrl. Solenoid ON and OFF with a scan tool. The test lamp should change from bright to dim, when changing between the commanded states.
¤ If the test lamp does not change from bright to dim with each command, test the TC vane position solenoid high control circuit terminal A and low control circuit terminal B for a short to ground, open, high resistance, or short to voltage. If the circuits test normal, replace the ECM.
Important: Resistance of the TC control solenoid will vary with the temperature.
3. Ignition OFF, measure the resistance of the TC vane position control solenoid. The reading should be between 2-7 ohms .
¤ If the resistance is not within the specified range, replace the TC vane position control solenoid.
4. Test for infinite resistance between each TC vane position control solenoid terminal and the TC control solenoid housing.
¤ If less than infinite resistance, replace the TC control solenoid.
5. Disconnect the harness connectors at the ECM, and TC vane position sensor.
6. Test for less than 5 ohms of resistance on all circuits between the following terminals:
o The ECM C1 solenoid high control circuit terminal 48 to TC vane position control solenoid terminal A.
o The ECM C1 solenoid low control circuit terminal 96 to TC control solenoid terminal B.
o The ECM C1 sensor signal circuit terminal 20 to TC vane position sensor terminal B.
o The ECM C1 sensor low reference terminal 63 to TC vane position sensor terminal C.
o The ECM C1 sensor 5-volt reference terminal 13 to TC vane position sensor terminal D.
¤ If the resistance is over 5 ohms , repair the high resistance in the affected circuit.
7. Connect the ECM connectors. Test the TC vane position sensor.
8. Install and connect the TC vane position sensor.
9. Command the turbocharger TC vane position sensor from 0 percent to 100 percent while observing the TC Vane Position Sensor Volts parameter. The voltage should increment smoothly and gradually from approximately 1.0 volt to greater than 3.5 volt at 100 percent .
¤ If the voltage parameter does not change gradually and smoothly, replace the TC control solenoid.
10. Inspect the turbocharger for debris, damage, or sticking vanes.
11. If all circuits, the TC vane position control solenoid, and the TC vane position sensor tests are normal, replace the turbocharger assembly.
Component Testing
Important: Perform the Circuit/System Testing in order to verify the integrity of the TC vane position sensor circuits before proceeding with the Component Testing.
TC Vane Position Sensor
1. Remove the TC vane position sensor.
2. Connect the TC vane position sensor harness connector.
3. Ignition ON, observe the scan tool TC Vane Position Sensor parameter for a smooth percentage change while slowly depressing the button at the end of the TC vane position sensor. The percentage change should increment slowly without any spikes or dropouts.
¤ If the TC Vane Position parameter drops out or spikes, replace the TC vane position sensor.
Repair Instructions
Perform the Turbocharger Learn, then review the DTC information with a scan tool. See: Fuel Delivery and Air Induction\Turbocharger\Service and Repair\Procedures
* Exhaust Particulate Filter Cleaning (LMM DPF Regeneration Enable) Exhaust Particulate Filter Cleaning (LMM DPF Service Regeneration) for Service Regeneration
* Turbocharger Control Solenoid Valve Replacement
* Turbocharger Vane Position Sensor Replacement
* Turbocharger Removal
* Turbocharger Oil Feed Pipe Replacement
* Refer to Programming and Relearning for setup and programming. See: Testing and Inspection\Programming and Relearning
Repair Verification
Notice: Refer to Diesel Particulate Filter (DPF) Service Regeneration Notice.
Engine running, observe the TC Vane Position Sensor and the Desired TC Vane Position parameters. Slowly increase the engine speed to 2,500 RPM, and slowly return the engine speed to idle. The TC Vane Position Sensor parameter should remain near or equal to the desired TC Vane Position parameter.
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