VIN L
DTC 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 P0336
- Crankshaft Position Sensor Performance
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 tooth 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.
* DTC P0336 runs continuously when the above condition is met.
* DTC P0641 is not set.
Conditions for Setting the DTC
The ECM detects crankshaft position sensor pulses that are more than 0 but not equal to 57 teeth, and a sync gap per one crankshaft revolution.
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.
Reference Information
Schematic Reference
Engine Controls Schematics ([1][2]Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector End Views By Name)
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 (Programming and Relearning)for scan tool information
Circuit/System Verification
1. Engine idling, observe the scan tool Crankshaft Position Active Counter parameter. The parameter should be incrementing.
2. Engine idling, observe the DTC information with a scan tool. DTC P0336 should not set.
3. 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 B26 crankshaft position sensor.
2. Ignition OFF, vehicle systems OFF, this may take 2 minutes, test for less than 1 ohm between the low reference circuit, terminal 2, 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 ECM.
3. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit, terminal 3 and ground.
• If less than the specified range, test the 5 V reference circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the K20 ECM.
• 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 ECM.
4. Ignition ON, test for 4.8-5.2 V between the signal circuit terminal 1 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 ECM.
• If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K20 ECM.
5. Ignition OFF, connect a 3 A fused jumper wire to the signal circuit terminal 1.
6. Ignition ON, momentarily touch the other end of the fused jumper wire to the battery negative post. The Crankshaft Position Active counter, should increment.
• If the Crankshaft Position Active counter increments, test or replace the B26 crankshaft position sensor.
• If the Crankshaft Position Active counter does not increment, replace the K20 ECM.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Crankshaft Position Sensor Replacement (Crankshaft Position Sensor Replacement)
* Control Module References (Programming and Relearning)for ECM replacement, setup, and programming