DTC P2564 or P2565
Diagnostic Instructions
DTC Descriptors
| DTC P2564 00: Turbocharger Vane Position
Sensor Circuit Low Voltage |
| DTC P2565 00: Turbocharger Vane Position
Sensor Circuit High Voltage |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
5V Reference
|
P0641
|
P2564 00
|
P0641
|
-
|
Signal
|
P2564 00
|
P2564 00
|
P2565 00
|
-
|
Low Reference
|
-
|
P2565 00
|
-
|
-
|
|
| |
Circuit/System Description
The turbocharger vane position sensor is mounted on the turbo
charger vacuum actuator. A 5 V reference voltage and a low
reference is supplied to the turbocharger vane position sensor. The
sensor provides a signal to the engine control module (ECM) with
the actual turbocharger control rod position.
Conditions for Running the DTC
The ignition is ON or engine is running.
Conditions for Setting the DTC
The ECM detects a short to ground or a short to Voltage for more
than 1 s.
Action Taken When the DTC Sets
DTCs P2564 and P2565 are Type A DTCs.
Conditions for Clearing the DTC
DTCs P2564 and P2565 are Type A DTCs.
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
Circuit/System Verification
Ignition ON, observe the scan tool Turbocharger Vane Position
Sensor. The reading should be between 0.5-4.5 V and changes
according to the engine speed.
Circuit/System Testing
| 1. |
Ignition OFF, disconnect the
harness connector at the B112 Turbocharger Vane Position
Sensor. |
| 2. |
Ignition OFF, test for less
than 5 Ω between the low reference circuit terminal 1 and
ground. |
| ⇒ |
If greater than the specified range, test the low
reference circuit for an open/high resistance. If the circuit tests
normal, replace the K20 Engine Control Module. |
| 3. |
Ignition ON, test for 4.8-5.2
V between the 5 V reference circuit terminal 3 and ground.
|
| ⇒ |
If less than the specified range, test the 5 V
reference circuit for a short to ground or an open/high resistance.
If the circuit tests normal, replace the K20 Engine Control
Module. |
| ⇒ |
If greater than the specified range, test the 5 V
reference circuit for a short to voltage. If the circuit tests
normal, replace the K20 Engine Control Module. |
| 4. |
Verify the scan tool
Turbocharger Vane Position Sensor is less than 0.3 V. |
| ⇒ |
If greater than the specified range, test the
signal circuit terminal 2 for a short to voltage. If the circuit
tests normal, replace the K20 Engine Control Module. |
| 5. |
Install a 3 A fused jumper
wire between the signal circuit terminal 2 and the 5 V reference
circuit terminal 3. Verify the scan tool Turbocharger Vane Position
Sensor is greater than 4.8 V. |
| ⇒ |
If greater than the specified range, test the
signal circuit for a short to voltage or an open/high resistance.
If the circuit tests normal, replace the K20 Engine Control
Module. |
| 6. |
If all circuits test normal,
test or replace the B112 Turbocharger Vane Position Sensor.
|
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|
