| P0344 | Camshaft position (CMP) sensor circuit intermittent concern |
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DETECTION CONDITION
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• The PCM monitors the input voltage from the CMP sensor signal. If the voltages at PCM deviates from the threshold, the PCM determines that the there is a CMP sensor problem.
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POSSIBLE CAUSE
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• CMP sensor circuit intermittent concern
• CMP sensor pulse wheel malfunction
• PCM malfunction
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Diagnostic procedure
| STEP | INSPECTION | ACTION | |
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record FREEZE FRAME DATA on repair order, then go to the next step.
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2
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VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related service bulletins and/or on-line repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to available repair information.
• If vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
• Connect the M-MDS to the DLC-2.
• Clear the DTC from the PCM memory using the M-MDS.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
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Yes
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Go to the next step.
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No
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Intermittent concern exists.
Perform the “INTERMITTENT CONCERNS TROUBLESHOOTING”, go to the next step.
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4
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INSPECT CMP SENSOR PULSE WHEEL
• Inspect the CMP sensor pulse wheel.
• Is there any malfunction?
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Yes
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Inspect the CMP sensor pulse wheel for damage.
Replace the CMP sensor or CMP sensor pulse wheel, then go to the next step.
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No
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Go to the next step.
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5
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VERIFY THAT DTC P0344 TROUBLESHOOTING IS COMPLETED
• Make sure to reconnect all disconnected connectors.
• Turn the engine switch to the ON position. (Engine off).
• Clear the DTC from the PCM memory using the M-MDS.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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6
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VERIFY AFTER REPAIR PROCEDURE
• Perform the after repair procedure.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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