DTC U0515:00 [DYNAMIC STABILITY CONTROL (DSC)]
id0402b2892500
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DTC
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U0515:00
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Abnormal signal from cruise control switch
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DETECTION CONDITION
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• The DSC HU/CM received error signals from the cruise control switch with the ignition switched ON (engine off or on).
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FAIL-SAFE FUNCTION
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• Illuminates the Mazda Radar Cruise Control (MRCC) warning light.
• Inhibits the Mazda Radar Cruise Control (MRCC) control.
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POSSIBLE CAUSE
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• Cruise control switch malfunction
• Start stop unit malfunction
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SYSTEM WIRING DIAGRAM
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Not applicable
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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INSPECT CRUISE CONTROL SWITCH
• Inspect the cruise control switch.
• Is the cruise control normal?
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Yes
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Go to the next step.
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No
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Replace the cruise control switch, then go to the next step.
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2
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PERFORM START STOP UNIT DTC INSPECTION
• Switch the ignition to off.
• Verify DTCs for the start stop unit using the M-MDS.
• Is the DTC displayed?
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Yes
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Go to applicable DTC inspection.
(See DTC TABLE [START STOP UNIT].)
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No
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Go to the next step.
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3
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VERIFY THAT THE SAME DTC IS NOT PRESENT
• Clear DTC for the DSC HU/CM using the M-MDS.
• Are the same DTCs present?
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Yes
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Repeat the inspection from Step 1.
If the malfunction recurs, replace the start stop unit, then go to the next step.
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No
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Go to the next step.
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4
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VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
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Yes
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Repair the malfunctioning part according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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