| Mazda U0416 | Invalid data received from DSC CM |
|---|---|
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DETECTION CONDITION
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• PCM received implausible torque request from DSC CM.
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POSSIBLE CAUSE
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• DSC CM does not determine vehicle condition correctly.
• Communication error between PCM and DSC CM
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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 the FREEZE FRAME DATA on the repair order, then go to the next step.
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||
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2
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VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related service repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to the available repair information.
If the 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.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
|
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 CONCERN TROUBLESHOOTING”.
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|
4
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RETRIEVE DSC CM DTC
• Retrieve the DSC CM DTC sing the M-MDS.
• Is there any DTC retrieved?
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Yes
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Go to the applicable DTC inspection.
|
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No
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Go to the next step.
|
||
|
5
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INSPECT STEERING POSITION SIGNAL
• Access and monitor DSC PID SWA_POS.
• Is the PID SWA_POS value normal?
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Yes
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Go to the next step.
|
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No
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Inspect the steering angle sensor and repair or replace if necessary.
Then go to Step 7.
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6
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INSPECT COMBINED SENSOR INSTALLATION
• Inspect the combined sensor installation.
• Is the combined sensor installed correctly?
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Yes
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Inspect the tire conditions.
Service if necessary.
Then go to the next step.
|
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No
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Install the combined sensor correctly, then go to the next step.
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|
7
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VERIFY THAT DTC U0416 TROUBLESHOOTING IS COMPLETED
• Make sure to reconnect all disconnected connectors.
• 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?
|
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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|
8
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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 is completed.
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