DTC P2263
Diagnostic Instructions
DTC Descriptors
DTC P2263 00: Turbocharger Boost System
Performance Not Plausible
DTC P2263 5A: Turbocharger Boost System
Performance Malfunction
DTC P2263 61: Turbocharger Boost System
Performance Stuck
Circuit/System Description
The turbocharger pressure sensor responds to pressure changes in
the inlet manifold. The pressure changes occur based on the engine
load, and turbocharger boost. The engine control module (ECM)
supplies 5 V to the turbocharger pressure sensor on the
5 V reference circuit. The ECM provides an ground on the low
reference circuit. The turbocharger pressure sensor provides a
signal to the ECM on the signal circuit which is relative to the
pressure changes in the manifold.
Conditions for Running the DTC
• |
The DTCs run continuously when the above
conditions are met. |
Conditions for Setting the DTC
The actual turbocharger boost pressure is out of the desired
range for greater than 200 s.
Action Taken When the DTC Sets
DTC P2263 is a Type C DTC.
Conditions for Clearing the DTC
DTC P2263 is a Type C DTC.
Reference Information
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Special Tools
EN 23738-A Mityvac
For equivalent regional tools, refer to
Special Tools .
Circuit/System Verification
- Ignition ON, compare the scan tool boost pressure
sensor parameter to the barometric pressure sensor parameter. Both
parameters should be within 5 kPa (0.73 PSI).
- Observe the DTC information with a scan tool. Verify
that DTC P0045, P0047, or P0048 are not set.
- Engine running, increase the engine speed to
2 000 RPM. Command the turbocharger boost solenoid from
ON and OFF with a scan tool. Verify the scan tool Boost Pressure
Sensor parameter increases and decreases with the scan tool
commands.
- Operate the vehicle within the Conditions for Running
the DTC to verify the DTC does not reset. You may also operate the
vehicle within the conditions that you observed from the Freeze
Frame/Failure Records data.
Circuit/System Testing
- Inspect the fuel tank for the right fuel content.
- Inspect the inlet, and the exhaust systems, for the
following:
• |
Damaged or missing components |
⇒ |
If a condition is found, repair as necessary. |
- Disconnect the vacuum source from the
Q41 Turbocharger Vane Position Control Solenoid Valve.
- Connect the EN 23738-A Mityvac to the
Q41 Turbocharger Vane Position Control Solenoid Valve vacuum
supply hose. Engine running, verify the vacuum is greater than
-50 kPa (-7.25 PSI).
⇒ |
If less than the specified range, inspect the
vacuum supply hose and filter for a leak or restriction. If the
supply hose is normal, replace the vacuum pump. |
- Connect the vacuum source to the Q41 Turbocharger
Vane Position Control Solenoid Valve. Connect the
EN 23738-A Mityvac to the Q41 Turbocharger Vane
Position Control Solenoid Valve vacuum port. Engine running,
command the Turbocharger Vane Position to 5% with a scan tool.
Verify the vacuum is less than
-40 kPa (-5.8 PSI).
⇒ |
If greater than the specified range, replace the
Q41 Turbocharger Vane Position Control Solenoid Valve. |
- Command the Turbocharger Vane Position to 95% with a
scan tool. Verify the vacuum is greater than -50 kPa
(-7.25 PSI).
⇒ |
If less than the specified range, replace the
Q41 Turbocharger Vane Position Control Solenoid Valve. |
- Connect the EN 23738-A Mityvac to the
turbocharger vane position control vacuum actuator. Apply
-50 kPa (-7.25 PSI) vacuum to the turbocharger vane
position control vacuum actuator. Verify the Turbocharger Vane
Position Sensor parameter is greater than 70%.
⇒ |
If less than the specified range, replace the
turbocharger vane position control vacuum actuator. |
- Inspect the turbocharger oil supply lines for a
restriction.
⇒ |
If restricted, repair or replace as
necessary. |
- If all other components test normal, replace the
turbocharger.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
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