The DTC P0335 Crankshaft Position (CKP) Sensor Circuit diagnostic monitors the CKP sensor output. The CKP sensor is used to indicate the crankshaft position so that the powertrain control module (PCM) can determine which cylinder is misfiring when a misfire is present. The CKP sensor generates an A/C signal from the crankshaft reluctor wheel.

The engine must be running.

No signal from the CKP sensor with the PCM receiving 20 pulses from the camshaft position (CMP) sensor.

Check for any of the following conditions:

An intermittent malfunction may be caused by a fault in the CKP sensor circuit. Inspect the wiring harness and components for an intermittent condition. Refer to Intermittent Conditions .

If no problem is found with the CKP sensor or the circuitry, check the crankshaft timing belt pulley for foreign material or damaged teeth.

If a DTC P0335 is intermittent, driving the vehicle under the following conditions can verify whether the fault is present. Perform the scan tool Clear DTC Information function. Road test the vehicle while monitoring the DTC P0335 diagnostic on the scan tool under the Not Ran Since Code Cleared selection in the DTC Information menu. If a DTC P0335 appears in the Not Ran Since Code Cleared list, the DTC P0335 diagnostic has not yet run. When the DTC P0335 does not appear in the Not Ran Since Code Cleared list, the DTC P0335 diagnostic has run. If the MIL is NOT illuminated, and there is no Pending DTC Status in DTC Information, the DTC P0335 diagnostic has passed. The DTCs MUST be cleared in order to view the Current Status of the Not Ran Since Code Cleared list. DO NOT forget that the Not Ran Since Code Cleared list only indicates that the test has run, not whether the test passed or failed. The DTC Information screen must be checked for Current or Pending status in order to determine the outcome of the diagnostic test involved.

If the DTC P0335 cannot be duplicated, the information included in the Freeze Frame data can be useful in determining vehicle operating conditions since the DTC was first set.

The numbers below refer to the step numbers in the diagnostic table.

1. The Diagnostic System Check-Engine Controls prompts the technician to complete some basic checks and to store the Freeze Frame data on the scan tool if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored in the scan tool for later reference.

2. Determine if a fault is present. Review the Freeze Frame data in order to determine when the DTC set. Always record this information.

3. If the CKP sensor is within the specified value, measure the resistance from the CKP sensor side of each terminal to ground. The CKP sensor's resistance should be 1M ohms or more. If not replace the CKP sensor.

4. Check for an open or a short in the CKP sensor's high and low reference circuits between the PCM and the CKP sensor.

8. Clearing the DTCs by removing the DOME fuse also clears the PCM long term memory. Using the scan tool to clear DTCs leaves the long term memory active. DTC emitting diagnostics may not run to completion as expected unless the long term memory is cleared. Removal of the DOME fuse also clears the time display of the radio. The DTC P0335 diagnostic can be monitored on the scan tool under the Not Ran Since Code Cleared selection in the DTC Information menu. If a DTC P0335 appears in the Not Ran Since Code Cleared list, the DTC P0335 diagnostic has not yet run. When the DTC P0335 does not appear in the Not Ran Since Code Cleared list, the DTC P0335 diagnostic has run. If the MIL is NOT illuminated, and there is no Pending DTC Status in DTC Information, the DTC P0335 diagnostic has passed. The DTCs MUST be cleared in order to view the Current Status of the Not Ran Since Code Cleared list. DO NOT forget that the Not Ran Since Code Cleared list only indicates that the test has run, not whether the test passed or failed. The DTC Information screen must be checked for Current or Pending status, in order to determine the outcome of the diagnostic test involved.