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 Descriptor

DTC P0017: Crankshaft Position (CKP) - Exhaust Camshaft Position (CMP) Correlation

### Circuit/System Description

The powertrain control module (PCM) uses the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor information to monitor the correlation between the crankshaft and camshaft positions.

### Conditions for Running the DTC

• | DTCs P0335, P0336, P0340, P0341 are not set.

• | The engine is cranking or running.

• | DTC P0017 runs continuously when the above conditions are met.

### Conditions for Setting the DTC

The PCM detects that the timing between the crankshaft and the camshaft is incorrect.

### Action Taken When the DTC Sets

• | The control module stores the DTC information into memory when the diagnostic runs and fails.

• | The malfunction indicator lamp (MIL) will not illuminate.

• | The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure Records.

• | The driver information center, if equipped, may display a message.

### Conditions for Clearing the DTC

• | A current DTC Last Test Failed clears when the diagnostic runs and passes.

• | A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.

• | Clear the DTC with a scan tool.

### Diagnostic Aids

• | Inspect the engine for any recent mechanical repairs. An incorrectly installed camshaft position sensor, crankshaft, camshaft, or timing chain can cause this DTC to set.

• | An incorrectly built exhaust camshaft can cause this DTC to set.

### Reference Information

#### Schematic Reference

Engine Controls Schematics

#### Connector End View Reference

• | Engine Controls Connector End Views

• | Powertrain Control Module Connector End Views

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

#### Scan Tool Reference

• | Scan Tool Data List

• | Scan Tool Data Definitions

### Circuit/System Verification

Observe the DTC Information with a scan tool.

⇒ | If the scan tool displays that any other DTCs also failed this ignition, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

⇒ | If only DTC P0017 is displayed, continue with Circuit/System Testing.

### Circuit/System Testing

1. With the ignition OFF, inspect the crankshaft balancer bolt for the proper torque. Refer to Fastener Tightening Specifications .

⇒ | If the crankshaft balancer bolt is not at the proper torque, refer to Crankshaft Balancer Replacement .

2. Inspect for incorrect installation of the CMP sensor. Refer to Camshaft Position Sensor Replacement .
3. Inspect the engine for correct valve timing. Refer to Camshaft Timing Chain, Sprocket, and Tensioner Replacement .

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.