DTC P2009 or P2010 (LPL or LPV)
Diagnostic Instructions
DTC Descriptors
| DTC P2009: Intake Manifold Runner Control
Valve Control Circuit Low Voltage |
| DTC P2010: Intake Manifold Runner Control
Valve Control Circuit High Voltage |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Ignition
|
P2009
|
P2009
|
-
|
-
|
Control
|
P2009
|
P2010
|
P2010
|
-
|
|
| |
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
Engine is running.
Conditions for Setting the DTC
P2009
The ECM detects the intake manifold runner control solenoid valve
control circuit is shorted to ground for more than 1 s.
P2010
The ECM detects the intake manifold runner control solenoid valve
control circuit is shorted to voltage for more than 1 s.
Action Taken When the DTC Sets
DTCs P2009 or P2010 are Type A DTCs.
Conditions for Clearing the DTC
DTCs P2009 or P2010 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
| 1. |
Ignition ON, command the
Intake Manifold Runner ON and OFF with a scan tool. Observe the
scan tool Intake Manifold Runner Control Valve Feedback Signal
parameter. |
| 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. |
Circuit/System Testing
| 1. |
Ignition OFF, disconnect the
harness connector at the Q21 Intake Manifold Runner Control
Solenoid Valve. |
| 2. |
Ignition ON, connect a test
lamp between the ignition circuit terminal 1 and ground.
|
| ⇒ |
If the test lamp is OFF, test the ignition circuit
for a short to ground or an open/high resistance. |
| 3. |
Connect a test lamp between
the control circuit terminal 2 and the ignition circuit terminal
1. |
| 4. |
Command the Intake Manifold
Runner ON and OFF with a scan tool. The test lamp should turn ON
and OFF when changing between the commanded states. |
| ⇒ |
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. |
| ⇒ |
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. |
| 5. |
If all circuits test normal,
test or replace the Q21 Intake Manifold Runner Control Solenoid
Valve. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
Control Module References for ECM replacement, programming, and
setup
|
