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P0335




DTC P0335 or P0336

Diagnostic Instructions

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

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

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provide an overview of each diagnostic category.

DTC Descriptor

DTC P0335
- Crankshaft Position Sensor Circuit

DTC P0336
- Crankshaft Position Sensor Performance

Diagnostic Fault Information






Circuit/System Description

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

Conditions for Running the DTC

P0335

* The engine speed is greater than 400 RPM and synchronization is complete.

* The starter is engaged.
AND

* The vehicle is stationary.
OR

* Vehicle speed is greater than 26 km/h (16 MPH) and engine speed is less than 200 RPM.

* Engine speed is less than 200 RPM and the starter is not engaged.

P0336

* The engine is running.

* The DTCs run continuously when the above conditions are met.

Conditions for Setting the DTC

P0335

The engine control module has not detected a pulse from the crankshaft position sensor for 6 or more camshaft rotations.

P0336

The crankshaft position sensor signal is erratic for 10 or more crankshaft rotations.

Action Taken When the DTC Sets

* DTC P0335 is a Type A DTC.

* DTC P0336 is a Type B DTC.

Conditions for Clearing the MIL/DTC

* DTC P0335 is a Type A DTC.

* DTC P0336 is a Type B DTC.

Diagnostic Aids

If the crankshaft position sensor signal is interrupted while the engine is running the engine could stall and may not start.

Reference Information

Schematic Reference

Engine Controls Schematics [1][2]Electrical Diagrams

Connector End View Reference

Component Connector End Views 1-2 Shift Solenoid (SS) Valve (M30)

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify DTC P06D2 is not set.

• If the DTC is set
Refer to DTC P0641, P0651, P0697, P06A3, P06D2, or P06D6 P0641.

• If the DTC is not set

3. Engine running.

4. Verify the scan tool CKP Active Counter parameter increments.

• If the counter does not increment
Refer to Circuit/System Testing.

• If the counter increments

5. 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.

6. Verify the DTC does not set.

• If the DTC sets
Refer to Circuit/System Testing.

• If the DTC does not set

7. All OK.

Circuit/System Testing

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the crankshaft position (CKP) sensor. It may take up to 2 minutes for all vehicle systems to power down.

2. Test for less than 5 ohms between the low reference circuit terminal 2 and ground.

• If 5 ohms or greater

1. Ignition OFF, disconnect the X2 harness connector at the engine control module.

2. Test for less than 2 ohms in the low reference circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If 2 ohms or less, replace the engine control module.

• If less than 5 ohms

3. Ignition ON.

4. Test for 4.8-5.2 V between the 5 V reference circuit terminal 3 and ground.

• If less than 4.8 V

1. Ignition OFF, disconnect the X2 harness connector at the engine control module.

2. Test for infinite resistance between the 5 V reference circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance

3. Test for less than 2 ohms in the 5 V reference circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms , replace the engine control module.

• If greater than 5.2 V

1. Ignition ON.

2. Test for less than 1 V between the 5 V reference circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V, replace the engine control module.

• If between 4.8-5.2 V

5. Test for 4.8-5.2 V between the signal circuit terminal 1 and ground.

• If less than 4.8 V

1. Ignition OFF, disconnect the X2 harness connector at the engine control module.

2. Test for infinite resistance between the signal circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance.

3. Test for less than 2 ohms in the signal circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the engine control module.

• If greater than 5.2 V

1. Ignition ON.

2. Test for less than 1 V between the signal circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V, replace the engine control module.

• If between 4.8-5.2 V

6. Ignition OFF, connect a 3 A fused jumper wire to the signal circuit terminal 1.

7. Ignition ON.

Note: Additional DTCs may set when performing this test.

8. Verify the scan tool CKP Active Counter parameter increments while repeatedly momentarily touching the fused jumper wire to ground.

• If the counter does not increment
Replace the engine control module.

• If the counter increments

9. Verify DTC P0336 is not set.

• If the DTC is set
Inspect for the conditions listed below:

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

* Improper installation of the crankshaft position sensor

* Foreign material passing between the crankshaft position sensor and the reluctor wheel

* Damaged reluctor wheel

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

* Engine oil for debris

* Timing chain, tensioner, and sprockets for wear or damage

• If any of the conditions above are found, repair as necessary.

• If all components test normal, test or replace the crankshaft position sensor.

• If the DTC is not set

10. Replace the crankshaft position sensor.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

* Crankshaft Position Sensor Replacement Crankshaft Position Sensor Replacement

* Control Module References Control Module References for engine control module replacement, programming, and setup

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