For 1990-2009 cars

### Diagnostic Instructions

• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• | Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• | Diagnostic Procedure Instructions provides an overview of each diagnostic category.

### DTC Descriptors

DTC P2016 08: Intake Manifold Runner Control Valve Control Circuit Malfunction
DTC P2017 08: Intake Manifold Runner Control Valve Control Circuit Malfunction

### Diagnostic Fault Information

Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance
--- | --- | --- | --- | ---
Signal | P2016 08 | P2017 04 | P2017 04 | P2015 20, P2015 21, P2015 22, P2015 23, P2015 24, P2015 25, P2015 26, P2015 27
Low Reference | -- | P2017 04 | P2017 04 | --

### Circuit/System Description

The position of the swirlflaps 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

#### P2016

The ECM detects a short to ground or an open circuit for more than 5 s.

#### P2017

The ECM detects a short to voltage for more than 5 s.

### Action Taken When the DTC Sets

DTCs P2016 and P2017 are Type A DTCs.

### Conditions for Clearing the DTC

DTCs P2016 and P2017 are Type A DTCs.

### Reference Information

#### Schematic Reference

Engine Controls Schematics

#### Connector End View Reference

Component Connector End Views

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

#### 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 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 (IMRC) Solenoid Valve.
2. Test for less than 5 Ω between the low reference circuit terminal 2 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 (ECM).

3. Disconnect the X2 harness connector at the K20 Engine Control Module (ECM).
4. Ignition ON, test for less than 0.3 V between the signal circuit at the Q21 Intake Manifold Runner Control (IMRC) Solenoid Valve terminal 5 and ground.

⇒ | If greater than the specified range, test the signal circuit for a short to voltage.

5. Ignition OFF, test for greater than 500 kΩ between the signal circuit terminal 5 and ground.

⇒ | If less than the specified range, test the signal circuit for a short to ground.

6. Test for less than 5 Ω between the signal circuit at the Q21 Intake Manifold Runner Control (IMRC) Solenoid Valve terminal 5 and the signal circuit at the K20 Engine Control Module (ECM) terminal 43 (X2).

⇒ | If greater than the specified range, test the signal circuit for an open circuit.

7. If all circuits test normal, replace the Q21 Intake Manifold Runner Control (IMRC) Solenoid Valve and verify the DTC does not reset.

⇒ | If the DTC resets, replace the K20 Engine Control Module (ECM).

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

• | Link x intake Manifold Runner replacement

• | Control Module References for ECM replacement, setup, and programming