Powertrain Management
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 Descriptors
DTC P0335 00
- Crankshaft Position Sensor Circuit
DTC P0336 00
- Crankshaft Position Sensor Performance
Diagnostic Fault Information
Circuit/System Description
The crankshaft position sensor signal detects crankshaft speed and position. The crankshaft position sensor produces an alternating current (AC) voltage of different amplitude and frequency. The frequency depends on the velocity of the crankshaft, and the AC voltage output depends on the crankshaft position and battery voltage. The crankshaft position sensor works in conjunction with a 58 teeth reluctor wheel attached to the crankshaft. The engine control module (ECM) can synchronize the ignition timing, fuel injector timing, and spark knock control based on the crankshaft position sensor and the camshaft position sensor inputs. The crankshaft position sensor is also used to detect misfire and tachometer display.
Conditions for Running the DTC
P0335 Condition 1
* The engine is cranking starter is engaged.
* DTC P0101, P0102 and P0103 are not set.
* Engine Air Flow is greater than 3.0 grams/second.
Condition 2
* Engine is running and starter is not engaged.
* DTC P0651 is not active.
Condition 3
* The engine is running or starter is engaged.
* P0365, P0366, P0641, or P0651, are not set.
P0336 Condition 1
* Engine Air Flow is greater than 3.0 grams/second.
* Engine speed is greater than 450 RPM.
* DTC P0335 or P0651 is not set.
Condition 2
Engine is running starter is not engaged P0651 is not set.
Condition 3
* Starter is engaged.
* DTC P0101, P0102, or P0103 are not set.
* Engine Air Flow is greater than 3.0 grams/second.
Condition 4
* Engine is running or starter is engaged.
* DTC P0365, P0366, P0641, or P0651 is not set.
The DTCs run continuously once the above conditions are met.
Conditions for Setting the DTC
P0335 00
This sets if one of the following conditions occur:
* The ECM detects that the engine has been cranking for greater than 15 s without a crankshaft position sensor pulse.
* The engine is operating and the ECM does not detect a crankshaft position sensor pulse for 10 s.
P0336 00
This sets if one of the following conditions occur:
* The ECM detects that the engine has been cranking for greater than 1.5 s without detecting the synchronization gap on the reluctor wheel.
* The ECM detects that the engine is running, but greater than 25 crankshaft resynchronization have occurred within 20 s.
* The ECM detects that the engine is running without detecting the synchronization gap on the reluctor wheel.
* The ECM detects that the engine is running, but receives less than 51 or greater than 65 crankshaft position sensor pulses, during one engine revolution.
Action Taken When the DTC Sets
* DTCs P0335 00 and P0336 00 are Type B DTCs.
* The ECM will use the camshaft position sensor for engine operation.
Conditions for Clearing the DTC
DTCs P0335 00 and P0336 00 are Type B DTCs.
Diagnostic Aids
The following conditions may also set the DTCs:
* 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
* Foreign material passing between the crankshaft position sensor and the reluctor wheel
* Excessive air gap between the crankshaft position sensor and the reluctor wheel
* The ECM uses the camshaft position sensors to determine engine speed and position when there is a crankshaft position sensor condition.
Reference Information
Schematic Reference
Engine Controls Schematics [1][2]Electrical Diagrams
Connector End View Reference
Component Connector End Views Hybrid/EV Battery Pack X1 A4
Description and Operation
* Electronic Ignition System Description Electronic Ignition System Description
* Hybrid Modes of Operation Description Hybrid Modes of Operation Description
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
Note: If you were sent here from engine cranks but does not run, proceed to circuit/system testing.
1. Service Mode active, observe the DTC information with a scan tool. Verify DTC P0651 00 is not set.
• If DTC P0651 00 is set, refer to DTC P0641, P0651, P0697, or P06A3 Powertrain Management for further diagnosis.
2. Attempt to start the engine. Observe the DTC information with a scan tool. DTC P0335 00 and P0336 00 should not set.
3. Engine cranking, observe the scan tool Engine Speed parameter. The scan tool should indicate an engine speed greater than 0 RPM.
4. Move related harnesses/connectors of the B26 Crankshaft Position Sensor and verify the engine does not stumble, stall, or change engine speed.
• If the above condition exists, repair the harness/connectors as necessary.
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.
Circuit/System Testing
Note: If the B26 Crankshaft Position Sensor lead is damaged in any way, replace the B26 Crankshaft Position Sensor.
1. Ignition OFF and all vehicle systems OFF, it may take 2 minutes for all Vehicle systems to power down, disconnect the harness connector at the B26 Crankshaft Position Sensor.
2. Test for less than 5 ohm between the low reference circuit terminal 2 and ground.
• If greater than the specified range, test the circuit for an open/high resistance. If the circuit tests normal, replace the K20 Engine Control Module.
3. Service Mode active, 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.
4. 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.
5. Ignition OFF, connect a 3 A fused jumper wire to the B26 Crankshaft Position Sensor signal circuit terminal 3.
6. Ignition ON, momentarily touch the end of the fused jumper wire to ground while monitoring the scan tool Crankshaft Position Sensor. The Crankshaft Position Sensor should increment.
• If the Crankshaft Position Sensor does not increment, replace the K20 Engine Control Module.
7. If all circuits test normal, replace the B26 Crankshaft Position Sensor.
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 engine control module replacement, setup, and programming