DTC P0335 or P0336 - LLU
Diagnostic Instructions
DTC Descriptors
DTC P0335 00: Crankshaft Position Sensor Circuit
DTC P0336 00: Crankshaft Position Sensor Performance
Diagnostic Fault Information
Circuit
| Short to Ground
| Open/High Resistance
| Short to Voltage
| Signal Performance
|
Crankshaft Position Sensor 5 V Reference
| P0335 00, P0651 00
| P0335 00
| P0335 00, P0651 00
| P0336 00
|
Crankshaft Position Sensor Signal
| P0335 00
| P0335 00
| P0335 00
| P0336 00
|
Low Reference
| -
| P0335 00
| -
| P0336 00
|
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 synchronise 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
| • | DTCs P0101 00, P0102 00, P0103 00, P0365 00, P0366 00, P0641 00, and P0651 00 are not set. |
| • | The engine is cranking or running. |
| • | The airflow into the engine is greater than 3 g/s. |
| • | 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 synchronisation gap on the reluctor wheel. |
| • | The ECM detects that the engine is running, but greater than 25 crankshaft resynchronisation have occurred within 20 s. |
| • | The ECM detects that the engine is running without detecting the synchronisation 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 |
| ⇒ | If there is a condition with the crankshaft position sensor, the tachometer will be inoperative. |
| • | The crankshaft position sensor may be out of range after a hot soak. Review the freeze frame/failure records for engine coolant temperature when the DTC set. |
| • | 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
Connector End View Reference
Component Connector End Views
Description and Operation
Electronic Ignition System Description
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Ignition ON, observe the DTC information with a scan tool.
- Clear the DTC information with a scan tool. Attempt to start the engine, observe the DTC information with a scan tool. DTC P0335 00, P0336 00 or P033 00 should not set.
- 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
- Ignition OFF, disconnect the harness connector at the B26 Crankshaft Position Sensor.
- Ignition OFF, test for less than 1 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 3 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 1 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
Static Test
Note: You must perform the circuit/system testing before proceeding with component testing.
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.
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