DTC B10DF:46/C1A08:1C/U2007:46/U2007:62/U3000:49 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2905700

DTC

B10DF:46, C1A08:1C, U2007:46, U2007:62, U3000:49

DSC HU/CM (internal malfunction)

DETECTION CONDITION

•  The DSC CM on-board diagnostic function detects control module internal malfunction.

FAIL-SAFE FUNCTION

•  B10DF:46

―  Illuminates the TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^*1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^*1.

―  Inhibits the TCS, DSC, brake assist control, vehicle roll prevention function^*1, Hill Launch Assist (HLA), Secondary Collision Reduction (SCR)^*1, Mazda Radar Cruise Control (MRCC)^*1, Smart Brake Support (SBS)^*1, and Smart City Brake Support (SCBS)^*1 controls.

•  C1A08:1C

―  Illuminates the TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^*1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^*1.

―  Tire pressure monitoring system warning light^*1 illuminates after flashes.

―  Inhibits the TCS, DSC, brake assist control, vehicle roll prevention function^*1, Hill Launch Assist (HLA), TPMS^*1, Secondary Collision Reduction (SCR)^*1, Mazda Radar Cruise Control (MRCC)^*1, Smart Brake Support (SBS)^*1, and Smart City Brake Support (SCBS)^*1 controls.

•  U2007:46

―  Illuminates the TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^*1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^*1.

―  Inhibits the TCS, DSC, brake assist control^*3, vehicle roll prevention function^*1, Hill Launch Assist (HLA), Secondary Collision Reduction (SCR)^*1, Mazda Radar Cruise Control (MRCC)^*1, Smart Brake Support (SBS)^*1, and Smart City Brake Support (SCBS)^*1 controls.

•  U2007:62

―  Illuminates the ABS warning light, brake system warning light, TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^*1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^*1.

―  Inhibits the ABS, EBD, TCS, DSC, brake assist control, vehicle roll prevention function^*1, Hill Launch Assist (HLA), Secondary Collision Reduction (SCR)^*1, Mazda Radar Cruise Control (MRCC)^*1, Smart Brake Support (SBS)^*1, and Smart City Brake Support (SCBS)^*1controls.

•  U3000:49

―  Illuminates the ABS warning light, brake system warning light^*2, TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^*1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^*1.

―  Tire pressure monitoring system warning light^*1 illuminates after flashes. (Not illuminated/flashed depending on malfunction content.)

―  Inhibits the ABS, EBD^*3, TCS, DSC, brake assist control, vehicle roll prevention function^*1, Hill Launch Assist (HLA), TPMS^*1^*3, Secondary Collision Reduction (SCR)^*1, Mazda Radar Cruise Control (MRCC)^*1, Smart Brake Support (SBS)^*1, and Smart City Brake Support (SCBS)^*1controls.

^*1: If equipped.

^*2: Not illuminated depending on malfunction content.

^*3: Enabled depending on malfunction content.

POSSIBLE CAUSE

•  DSC HU/CM internal malfunction

SYSTEM WIRING DIAGRAM

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Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY NO DSC HU/CM MALFUNCTION • Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) • Start the engine and drive the vehicle at 10km/h {6.2 mph} or more. • Are the same DTCs present?	Yes	Replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION.)
1		No	Go to the next step.
2	VERIFY THAT NO OTHER DTCS ARE PRESENT • Are any other DTCs output?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
2		No	DTC troubleshooting completed.

DTC	B10DF:46, C1A08:1C, U2007:46, U2007:62, U3000:49		DSC HU/CM (internal malfunction)
DETECTION CONDITION		• The DSC CM on-board diagnostic function detects control module internal malfunction.
FAIL-SAFE FUNCTION		• B10DF:46 ― Illuminates the TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^1. ― Inhibits the TCS, DSC, brake assist control, vehicle roll prevention function^1, Hill Launch Assist (HLA), Secondary Collision Reduction (SCR)^1, Mazda Radar Cruise Control (MRCC)^1, Smart Brake Support (SBS)^1, and Smart City Brake Support (SCBS)^1 controls. • C1A08:1C ― Illuminates the TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^1. ― Tire pressure monitoring system warning light^1 illuminates after flashes. ― Inhibits the TCS, DSC, brake assist control, vehicle roll prevention function^1, Hill Launch Assist (HLA), TPMS^1, Secondary Collision Reduction (SCR)^1, Mazda Radar Cruise Control (MRCC)^1, Smart Brake Support (SBS)^1, and Smart City Brake Support (SCBS)^1 controls. • U2007:46 ― Illuminates the TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^1. ― Inhibits the TCS, DSC, brake assist control^3, vehicle roll prevention function^1, Hill Launch Assist (HLA), Secondary Collision Reduction (SCR)^1, Mazda Radar Cruise Control (MRCC)^1, Smart Brake Support (SBS)^1, and Smart City Brake Support (SCBS)^1 controls. • U2007:62 ― Illuminates the ABS warning light, brake system warning light, TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^1. ― Inhibits the ABS, EBD, TCS, DSC, brake assist control, vehicle roll prevention function^1, Hill Launch Assist (HLA), Secondary Collision Reduction (SCR)^1, Mazda Radar Cruise Control (MRCC)^1, Smart Brake Support (SBS)^1, and Smart City Brake Support (SCBS)^1controls. • U3000:49 ― Illuminates the ABS warning light, brake system warning light^2, TCS/DSC indicator light, Mazda Radar Cruise Control (MRCC) warning light^1, and Smart Brake Support/Smart City Brake Support (SBS/SCBS) indicator light (amber)^1. ― Tire pressure monitoring system warning light^1 illuminates after flashes. (Not illuminated/flashed depending on malfunction content.) ― Inhibits the ABS, EBD^3, TCS, DSC, brake assist control, vehicle roll prevention function^1, Hill Launch Assist (HLA), TPMS^1^3, Secondary Collision Reduction (SCR)^1, Mazda Radar Cruise Control (MRCC)^1, Smart Brake Support (SBS)^1, and Smart City Brake Support (SCBS)^1controls. ^1: If equipped. ^2: Not illuminated depending on malfunction content. ^3: Enabled depending on malfunction content.
POSSIBLE CAUSE		• DSC HU/CM internal malfunction
SYSTEM WIRING DIAGRAM		—