P0335
DTC P0335
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
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Crankshaft Position Sensor Circuit
Diagnostic Fault Information
Circuit/System Description
The hall effect crankshaft position sensor signal indicates the crankshaft speed and position. There are 57 teeth on the front of the crankshaft sprocket, plus a sync 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
* The engine is cranking or running.
* The camshaft position sensor signal is present.
* DTC P0335 runs continuously when the above conditions are met.
Conditions for Setting the DTC
The ECM determines no signal from the crankshaft position sensor.
Action Taken When the DTC Sets
DTC P0335 is a Type A DTC.
Conditions for Clearing the MIL/DTC
DTC P0335 is a Type A DTC.
Diagnostic Aids
If the crankshaft position sensor signal is lost while running, the engine could stall and might 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. The engine starts and runs.
2. Engine running, observe the DTC information with a scan tool. DTC P0335 should not set.
3. Engine idling, observe the scan tool Crankshaft Position Active Counter parameters. The parameter should be incrementing.
4. 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 crankshaft position sensor.
2. Ignition OFF and all vehicle systems OFF, it may take 2 minutes for all Vehicle systems to power down. Test for less than 5 ohms between low reference circuit terminal 2 of the connector and ground.
• If greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K20 engine control module.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference 3 circuit terminal 3 of the connector and ground.
• If less than the specified range, test the 5-volt reference 3 circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the K20 engine control module.
• If greater than the specified range, test the 5-volt reference 3 circuit for a short to voltage. If the circuit tests normal, replace the K20 engine control module.
4. Test for 4.8-5.2 volts between the signal circuit terminal 1 of the connector and ground.
• If less than the specified range, test the signal circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the K20 engine control module.
• If greater than the specified range, test the signal circuit for an a short to voltage. If the circuit tests normal, replace the K20 engine control module.
Note:
Additional DTCs may set when performing this test.
5. Ignition OFF, connect a 3A fused jumper wire between signal circuit terminal 1 of the connector and ground.
6. Ignition ON, momentarily touch the other end of the fused jumper wire to ground repeatedly while monitoring the scan tool Crankshaft Position Sensor Active Counter parameter. The Crankshaft Position Active counter, should increment.
7. If all circuits test normal, test or replace the B26 crankshaft position sensor.
• If the Crankshaft Position Active counter does not increment, replace the K20 engine control module.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Crankshaft Position Sensor Replacement Service and Repair
* Control Module References Control Module References for ECM replacement, setup, and programming