DTC U0452:86 [DYNAMIC STABILITY CONTROL (DSC)]
id0402b2893000
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DTC
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U0452:86
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Abnormal message from SAS control module
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DETECTION CONDITION
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• Correct data cannot be received from SAS control module
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FAIL-SAFE FUNCTION
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• Illuminates the TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light*1*2, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)*1*2.
• Tire pressure monitoring system warning light*2 illuminates after flashes. (Not illuminated/flashed depending on malfunction content.)
• Inhibits the TCS*3, DSC*3, vehicle roll prevention function*2*3, Hill Launch Assist (HLA)*3, TPMS*2*3, Secondary Collision Reduction (SCR)*2*3, Mazda Radar Cruise Control (MRCC)*2*3, Smart Brake Support (SBS)*2*3, and Smart City Brake Support (SCBS)*2*3 controls.
*1: Not illuminated depending on malfunction content.
*2: If equipped.
*3: Enabled depending on malfunction content.
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POSSIBLE CAUSE
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• SAS control module 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 FOR SAS CONTROL MODULE MALFUNCTION
• Switch the ignition to off.
• Using the M-MDS, perform the DTC inspection for the SAS control module.
(See DTC INSPECTION.)
• Are any DTCs detected?
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Yes
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Go to applicable DTC inspection.
(See DTC TABLE.)
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No
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Go to the next step.
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2
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VERIFY THAT THE SAME DTC IS NOT PRESENT
• Clear the DTCs from the memory.
• 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 SAS control module, then 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 THAT NO OTHER DTCS ARE PRESENT
• Are any other DTCs output?
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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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