DTC C1247: Stroke Sensor; DTC C1392: Zero Point Calibration of Stroke Sensor undone [04/2018 -]: Description

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The brake pedal stroke sensor assembly sends a signal about the pedal stroke to the skid control ECU (brake booster with master cylinder assembly).

DTC No.	Detection Item	INF Code	DTC Detection Condition	Trouble Area	MIL	Note
C1247	Stroke Sensor	211 212 213 214 215 216 217	INF Code: 211 The sensor supply voltage (VCSK) is 4.7 V or less, or 5.3 V or more for 0.2 seconds or more. INF Code: 212 The sensor output voltage 1 (SKS1) is less than 0.3 V, or 4.7 V or more for 0.2 seconds or more. INF Code: 213 The sensor output voltage 2 (SKS2) is less than 0.3 V, or 4.7 V or more for 0.2 seconds or more. INF Code: 214 The difference between the current value and previous value of the sensor output voltage 1 (SKS1) is 8.5% or more for 0.2 seconds or more. INF Code: 215 The difference between the current value and previous value of the sensor output voltage 2 (SKS2) is 8.5% or more for 0.2 seconds or more. INF Code: 216 The difference in change between sensor output voltage 1 (SKS1) and sensor output voltage 2 (SKS2) is excessively large for 0.2 seconds or more. (The comparison value of SKS1 and SKS2 is invalid.) INF Code: 217 Sensor data is invalid for 0.2 seconds or more. (The sensor data of SKS1 and SKS2 is invalid.)	INF Code: 211 Open or short in brake pedal stroke sensor assembly power supply circuit Improperly connected connector, deformation or corrosion of terminals Skid control ECU (brake booster with master cylinder assembly) INF Code: 212, 213, 214, 215, 216, 217 Open or short in wire harness Improperly connected connector, deformation or corrosion of terminals Brake pedal stroke sensor assembly	Comes on	INF Code 211: SAE Code C0562 INF Code 212: SAE Code P057C and P057D INF Code 213: SAE Code P05DD and P05DE INF Code 214: SAE Code P057E INF Code 215: SAE Code P05DF INF Code 216: SAE Code P05E0 INF Code 217: SAE Code C124B Electronically controlled brake system DTC
C1392	Zero Point Calibration of Stroke Sensor undone	1124	The brake pedal stroke sensor assembly zero point calibration is not performed. (Normal brake pedal stroke sensor assembly zero point not memorized.)	Normal brake pedal stroke sensor assembly zero point not memorized. (Linear solenoid valve offset learning is not performed or Test Mode is not performed or not complete.)	Only DTC C1392 (INF code 1124) is stored: Does not come on SAE Code C1392 is stored: Comes on	INF Code 1124: SAE Code C1392 Electronically controlled brake system DTC HINT: During Test Mode, related DTCs are cleared (except SAE code).