DTC

U0001:88, U0100:00, U0101:00, U0104:00, U0131:00, U0155:00, U0214:00, U0235:00

CAN line

DETECTION CONDITION

• U0001:88

• Open or short circuit in CAN system wiring harness is detected.

• U0100:00

• Communication error with PCM is detected in CAN communication.

• U0101:00

• Communication error with TCM is detected in CAN communication.

• U0104:00

• Communication error with MRCC CM is detected in CAN communication.

• U0131:00

• Communication error with EPS CM is detected in CAN communication.

• U0155:00

• Communication error with instrument cluster is detected in CAN communication.

• U0214:00

• Communication error with start stop unit is detected in CAN communication.

• U0235:00

• Communication error with laser sensor is detected in CAN communication.

FAIL-SAFE FUNCTION

• U0001:88

• Illuminates the ABS warning light, TCS/DSC indicator light, and master warning light*¹.

• Tire pressure monitoring system warning light illuminates after flashes.

• Inhibits the ABS, brake assist, TCS, Hill Launch Assist (HLA), vehicle roll prevention function*², DSC, Mazda Radar Cruise Control (MRCC)*², Smart City Brake Support (SCBS)*², and TPMS controls.

• U0100:00

• Illuminates the ABS warning light*³, TCS/DSC indicator light*³, and master warning light*¹*³.

• Tire pressure monitoring system warning light illuminates after flashes*³.

• Inhibits the ABS*⁴, brake assist*⁴, TCS*⁴, Hill Launch Assist (HLA)*⁴, vehicle roll prevention function*²*⁴, DSC*⁴, Mazda Radar Cruise Control (MRCC)*²*⁴, Smart City Brake Support (SCBS)*²*⁴, and TPMS*⁴ controls.

• U0101:00

• Illuminates the TCS/DSC indicator light and master warning light*¹.

• Inhibits the TCS, Hill Launch Assist (HLA), vehicle roll prevention function*², DSC, Mazda Radar Cruise Control (MRCC)*², and Smart City Brake Support (SCBS)*² controls.

• U0104:00

• Does not illuminate each warning/indicator light.

• Inhibits the Mazda Radar Cruise Control (MRCC)*².

• U0131:00

• Illuminates the TCS/DSC indicator light and master warning light*¹.

• Inhibits the TCS, DSC, Mazda Radar Cruise Control (MRCC)*², and Smart City Brake Support (SCBS)*² controls.

• U0155:00

• Illuminates the TCS/DSC indicator light*³, and master warning light*¹*³.

• Inhibits the Hill Launch Assist (HLA)^*4, Mazda Radar Cruise Control (MRCC)*²*⁴, and Smart City Brake Support (SCBS)^*2*4 controls.

• U0214:00

• Does not illuminate each warning/indicator light.

• Inhibits the Mazda Radar Cruise Control (MRCC)*² control.

• U0235:00

• Illuminates the master warning light*¹.

• Inhibits the Smart City Brake Support (SCBS)*² control.

*¹: Vehicles with Smart City Brake Support (SCBS).

*²: If equipped.

*³: Not illuminated depending on malfunction content.

*⁴: Control enabled depending on malfunction content.

POSSIBLE CAUSE

• CAN system wiring harness open or short circuit

• CAN system wiring harness open or short circuit with PCM

• CAN system wiring harness open or short circuit with TCM

• CAN system wiring harness open or short circuit with Vehicle Control Module (V/C-Module)

• CAN system wiring harness open or short circuit with EPS CM

• CAN system wiring harness open or short circuit with instrument cluster

• CAN system wiring harness open or short circuit with start stop unit

• CAN system wiring harness open or short circuit with laser sensor

• instrument cluster malfunction

SYSTEM WIRING DIAGRAM

Not applicable