P0336

DTC P0336

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provide an overview of each diagnostic category.

DTC Descriptor

DTC P0336
- Crankshaft Position (CKP) Sensor Performance

Diagnostic Fault Information






Typical Scan Tool Data






Circuit/System Description

The hall effect crankshaft position (CKP) sensor signal indicates the crankshaft speed and position. There are 57 teeth on the front of the crankshaft sprocket, plus a sync gap. The CKP sensor will output an ON/OFF pulse as each window passes the sensing element. The CKP sensor is connected directly to the engine control module (ECM) by the following circuits:

* The 5-volt reference circuit
* The low reference circuit
* The signal circuit

Conditions for Running the DTC

* The engine is cranking or running.
* DTC P0336 runs continuously when the above condition is met.
* DTCs P0652 or P0653 are not set.

Conditions for Setting the DTC

The ECM determines that the CKP sensor signal is out of range.

Action Taken When the DTC Sets

DTC P0336 is a Type A DTC.

Conditions for Clearing the MIL/DTC

DTC P0336 is Type A DTC.

Circuit/System Verification

1. If DTCs P0652 or P0653 are set, diagnose those DTCs first.
2. The engine starts and runs.
3. Engine running, observe the DTC information with a scan tool. DTC P0336 should not set.
4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

1. Ensure that the CKP sensor circuits are not routed too closely to the fuel injector wiring after-market add-on electrical equipment, solenoids, relays or motors.
2. Ignition OFF, inspect the CKP sensor for correct installation.

^ If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.

3. Inspect the engine for the following conditions:

* The engine oil for debris
* The crankshaft reluctor wheel for damage or foreign material passing between the sensor and reluctor wheel
* The timing chain, tensioner, and sprockets for wear or damage

4. If no other condition is found, replace the CKP sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

* Crankshaft Position Sensor Replacement
* Crankshaft Reluctor and Oil Pump Drive Gear Replacement