DTC C1271-71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272-72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1464-31: Front Speed Sensor RH Circuit; DTC C1465-32: Front Speed Sensor LH Circuit [06/2015 - ]: Description

Each speed sensor detects the wheel speed and sends the signals to the skid control ECU (brake booster with master cylinder assembly). These signals are used for ABS control.

DTCs C1271/71 and C1272/72 are cleared when the speed sensor sends a wheel speed signal or when Test Mode ends. DTCs C1271/71 and C1272/72 are output only in Test Mode.

DTC No.	Detection Item	INF Code	DTC Detection Condition	Trouble Area	Note
C1271/71	Low Output Signal of Front Speed Sensor RH (Test Mode DTC)	-	Detected only during Test Mode.	Front speed sensor RH Sensor installation Front speed sensor rotor RH (Front axle hub sub-assembly RH)	ABS Test Mode DTC
C1272/72	Low Output Signal of Front Speed Sensor LH (Test Mode DTC)	-	Detected only during Test Mode.	Front speed sensor LH Sensor installation Front speed sensor rotor LH (Front axle hub sub-assembly LH)	ABS Test Mode DTC
C1464/31	Front Speed Sensor RH Circuit	501 502 503 504 506 507 508	INF Code: 501 At a vehicle speed of 10 km/h (6 mph) or more, speed sensor output from one or two wheels is lower than that from other wheels for 15 seconds or more. INF Code: 502 A malfunction occurs in 2 or more wheels. INF Code: 503 An open is detected in the speed sensor signal circuit for 0.05 seconds or more. INF Code: 504 Instantaneous interruption of sensor signal from the malfunctioning wheel occurs 255 times or more. INF Code: 506 When VM1 voltage is 8.6 V or more, sensor supply voltage drops for 0.5 seconds or more. INF Code: 507 At a vehicle speed of 10 km/h (6 mph) or more, speed sensor output from one wheel is 0 km/h (0 mph) for 1 second or more. INF Code: 508 When VM1 voltage is 8.6 V or more, sensor supply voltage drops for 60 seconds or more.	INF Code: 501, 502, 504, 507 Open or short in speed sensor Improperly installed speed sensor, or abnormal clearance between sensor and rotor Open or short in wire harness Improperly connected connector, deformation or corrosion of terminals Front speed sensor RH Skid control ECU (Brake booster with master cylinder assembly) INF Code: 503 Open or short in speed sensor Open or short in wire harness Improperly connected connector, deformation or corrosion of terminals Front speed sensor RH Skid control ECU (Brake booster with master cylinder assembly) INF Code: 506, 508 Open or short in wire harness Skid control ECU (Brake booster with master cylinder assembly)	ABS DTC
C1465/32	Front Speed Sensor LH Circuit	511 512 513 514 516 517 518	INF Code: 511 At a vehicle speed of 10 km/h (6 mph) or more, speed sensor output from one or two wheels is lower than that from other wheels for 15 seconds or more. INF Code: 512 A malfunction occurs in 2 or more wheels. INF Code: 513 An open is detected in the speed sensor signal circuit for 0.05 seconds or more. INF Code: 514 Instantaneous interruption of sensor signal from the malfunctioning wheel occurs 255 times or more. INF Code: 516 When VM1 voltage is 8.6 V or more, sensor supply voltage drops for 0.5 seconds or more. INF Code: 517 At a vehicle speed of 10 km/h (6 mph) or more, speed sensor output from one wheel is 0 km/h (0 mph) for 1 second or more. INF Code: 518 When VM1 voltage is 8.6 V or more, sensor supply voltage drops for 60 seconds or more.	INF Code: 511, 512, 514, 517 Open or short in speed sensor Improperly installed speed sensor, or abnormal clearance between sensor and rotor Open or short in wire harness Improperly connected connector, deformation or corrosion of terminals Front speed sensor LH Skid control ECU (Brake booster with master cylinder assembly) INF Code: 513 Open or short in speed sensor Open or short in wire harness Improperly connected connector, deformation or corrosion of terminals Front speed sensor LH Skid control ECU (Brake booster with master cylinder assembly) INF Code: 516, 518 Open or short in wire harness Skid control ECU (Brake booster with master cylinder assembly)	ABS DTC