DTC P2015
| DTC P2015 |
| Diagnostic Instructions |
| • |
Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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| • |
Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptor |
DTC P2015 20
Intake Manifold Runner Control Valve Actuator Internal Performance Malfunction
DTC P2015 21
Intake Manifold Runner Control Valve Actuator Internal Performance Incorrect Period
DTC P2015 22
Intake Manifold Runner Control Valve Actuator Internal Performance Too Short Low-Time
DTC P2015 23
Intake Manifold Runner Control Valve Actuator Internal Performance Too Long Low-Time
DTC P2015 24
Intake Manifold Runner Control Valve Actuator Internal Performance Too Short High-Time
DTC P2015 25
Intake Manifold Runner Control Valve Actuator Internal Performance Too Long High-Time
DTC P2015 26
Intake Manifold Runner Control Valve Actuator Internal Performance Low Frequency
DTC P2015 27
Intake Manifold Runner Control Valve Actuator Internal Performance High Frequency
| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
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Signal
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P2016 08
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P2017 04
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P2017 04
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P2015 20, P2015 21, P2015 22, P2015 23, P2015 24, P2015 25, P2015 26, P2015 27
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Low Reference
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-
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P2017 04
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P2017 04
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-
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| Circuit/System Description |
The position of the swirl flaps is controlled by the engine control module (ECM). The ECM controls the intake manifold runner control solenoid valve to create a swirl in the combustion chamber to get a homogeneous diesel air mixture. The ECM will vary the intake manifold runner control solenoid valve referring to the barometric pressure and the mass air flow. The ECM uses a pulse width modulation on the control circuit to control the intake manifold runner control solenoid valve.
| Conditions for Running the DTC |
The engine is running.
| Conditions for Setting the DTC |
The ECM detects a wrong frequency from the intake manifold runner control solenoid valve.
| Action Taken When the DTC Sets |
DTC P2015 is a Type A DTC.
| Conditions for Clearing the DTC |
DTC P2015 is a Type A DTC.
| Reference Information |
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
| 1. |
Ignition ON, command the Q21 Intake Manifold Runner Control Solenoid Valve ON and OFF with a scan tool. Observe the Intake Manifold Runner Control Valve Feedback Signal parameter.
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| 2. |
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.
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| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the Q21 Intake Manifold Runner Control Solenoid Valve.
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| 2. |
Test for less than 5Ω between the low reference circuit terminal 2 and ground.
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| 3. |
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.
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| 4. |
Disconnect the X1 harness connector at the K20 Engine Control Module.
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| 5. |
Ignition ON, test for less than 0.3 V between the signal circuit at the Q21 Intake Manifold Runner Control Solenoid Valve terminal 5 and ground.
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| 6. |
If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.
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| 7. |
Ignition OFF, test for greater than 500 kΩ between the signal circuit terminal 5 and ground.
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| 8. |
If less than the specified range, test the signal circuit for a short to ground. If the circuit tests normal, replace the K20 Engine Control Module.
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| 9. |
Test for less than 5 Ω between the signal circuit at the Q21 Intake Manifold Runner Control Solenoid Valve terminal 5 and the signal circuit at the K20 Engine Control Module terminal listed below:
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LCD/LBX/LBS Terminal 43 X1
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LBY Terminal 91 X1
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| 10. |
If greater than the specified range, test the signal circuit for an open circuit. If the circuit tests normal, replace the K20 Engine Control Module.
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| 11. |
Connect the X1 harness connector at the K20 Engine Control Module.
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| 12. |
Ignition ON, connect a test lamp between the ignition circuit terminal 6 and ground.
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| 13. |
If the test lamp is OFF, test the ignition circuit for a short to ground or an open/high resistance.
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| 14. |
Connect a test lamp between the control circuit terminal 1 and the ignition circuit terminal 6.
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| 15. |
Command the Intake Manifold Runner 95% to 5% and back with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
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| 16. |
If the test lamp is always ON, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
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| 17. |
If the test lamp is always OFF, test the control circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.
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| 18. |
If all circuits test normal, replace the Q21 Intake Manifold Runner Control Solenoid Valve.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for ECM replacement, setup, and programming
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