Service Information

Orlando

DTC P0336 or P0339 - LNP or LNQ

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 P0336 00: Crankshaft Position Sensor Performance

DTC P0339 00: Crankshaft Position Sensor Performance

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
5V Reference	P0336 00	P0336 00	P0336 00	P0336 00
Signal	P0336 00	P0336 00	P0336 00	P0336 00, P0339 00

Typical Scan Tool Data

Engine Speed

Circuit	Short to Ground	Open	Short to Voltage
*Operating Conditions:* Engine starts *Parameter Normal Range:* 60 RPM
5V Reference	0 RPM	0 RPM	0 RPM
Signal	0 RPM	0 RPM	0 RPM

Circuit

Short to Ground

Open

Short to Voltage

Operating Conditions: Engine starts

Parameter Normal Range: 60 RPM

5V Reference

0 RPM

Signal

0 RPM

The crankshaft position sensor signal indicates the crankshaft speed and position. The crankshaft position sensor produces an alternating current voltage of different amplitude and frequency. The frequency depends on the velocity of the crankshaft and the alternating current voltage output depends on the crankshaft position and battery voltage. The engine control module (ECM) can synchronise the ignition timing, fuel injector timing based on the crankshaft position sensor and the camshaft position sensor inputs. The sensor crankshaft position sensor is also used to detect misfire and tachometer display. The crankshaft position sensor circuits are connected directly to the ECM.

Conditions for Running the DTC

•	The engine is cranking or operating.

•	The engine control module detects no or wrong signal.

•	The DTC runs continuously once the above conditions are met.

Conditions for Setting the DTC

The crankshaft position sensor input does not continue when the engine is running.

Action Taken When the DTC Sets

•	DTC P0336 00 is a Type A DTC.

•	DTC P0339 00 is a Type B DTC.

Conditions for Clearing the DTC

•	DTC P0336 00 is a Type A DTC.

•	DTC P0339 00 is a Type B DTC.

Diagnostic Aids

The following conditions may also set the DTC:

•	Physical damage to the crankshaft position sensor or the reluctor wheel

•	Excessive play or looseness of the crankshaft position sensor or the reluctor wheel

•	Improper installation of the crankshaft position sensor or the reluctor wheel

•	Excessive air gap between crankshaft position sensor and the reluctor wheel

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

Engine starting or running, observe the scan tool Engine Speed parameter. The reading should be between 50-850 RPM.

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the B26 Crankshaft Position Sensor.
Ignition OFF, 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.

Ignition ON, engine OFF, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.

⇒	If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.

⇒	If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine Control Module.

Ignition ON, engine OFF, test for 4.8-5.2 V between the signal circuit terminal 3 and ground.

⇒	If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.

⇒	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.

If all circuits and components test normal, test or replace the B26 Crankshaft Position Sensor.

Component Testing

Note: You must perform the circuit/system testing before proceeding with component testing.

Static Test

Remove the B26 Crankshaft Position Sensor and inspect the sensor and the O-ring for damage.

⇒	If the sensor is loose, incorrectly installed, or damaged, replace the B26 Crankshaft Position Sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•	Crankshaft Position Sensor Replacement

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