P0335

CIRCUIT DESCRIPTION
The Crankshaft Position (CKP) sensor signal indicates the crankshaft speed and position. The CKP sensor is connected directly to the Powertrain Control Module (PCM) and consists of the following circuits:
^ The 12-volt reference circuit
^ The low reference circuit
^ The CKP sensor signal circuit

CONDITIONS FOR RUNNING THE DTC
^ DTCs P0101, P0102, P0103, or P0341 are not set.
^ The Camshaft Position (CMP) sensor is transitioning.
^ The Mass Air Flow (MAF) is more than 3 g/s while cranking.
^ The MAF is more than 5 g/s while running.

CONDITIONS FOR SETTING THE DTC
The PCM determines no signal from the CKP sensor for less than 8 seconds.

DIAGNOSTIC AIDS

IMPORTANT:
^ Remove any debris from the powertrain control module (PCM) connector surfaces before servicing the PCM. Inspect the PCM connector gaskets when diagnosing or replacing the PCM. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the PCM.
^ For any test that requires probing the PCM or component harness connectors, use the J 35616-A Connector Test Adapter Kit. Using this kit prevents any damage to the harness connector terminals. Refer to Connector Repairs in Diagrams.

The following conditions may cause this DTC to set:
^ Poor connections or terminal tension at the sensor-Refer to Connector Repairs in Diagrams.
^ Crankshaft reluctor wheel damage or improper installation
^ The sensor coming in contact with the reluctor wheel
^ The engine running out of fuel

Excess crankshaft end play causes the CKP sensor reluctor wheel to move out of alignment with the CKP sensor. This could result in any one of the following:
^ A no start
^ A start and stall
^ Erratic performance

For an intermittent, refer to Intermittent Conditions. Intermittent Conditions

TEST DESCRIPTION

Steps 1-9:

Steps 10-17:

The numbers below refer to the step numbers on the diagnostic table.
3. This step determines if the fault is present.
6. This step simulates a CKP sensor signal to the PCM. If the PCM receives the signal, the fuel pump will operate for about two seconds. If the fuel pump operates, the condition is either terminal contact at the CKP sensor, the CKP sensor, or the CKP sensor reluctor wheel.
7. This test determines if the CKP sensor signal circuit or if the PCM is faulty.
11. The CKP System Variation Learn Procedure must be performed anytime the relationship between the CKP sensor and the CKP reluctor wheel is changed.
12. To inspect the reluctor wheel, remove the starter and rotate the crankshaft while viewing the reluctor wheel through the CKP sensor hole. If you cannot determine if the reluctor wheel is damaged, the oil pan may have to be removed.
14. The CKP System Variation Learn Procedure must be performed anytime the relationship between the CKP sensor and the CKP reluctor wheel is changed.
15. Before replacing the PCM, inspect the PCM harness connections.