DTC | DEFECT DESCRIPTION | TROUBLE LOCATION |
C1101 | Battery voltage out of range (over-voltage fault) | Battery, alternator |
C1102 | Battery voltage out of range (under-voltage fault) | Battery, alternator |
C1161 | Stop lamp switch continuity fault | Stop lamp switch |
C1200 | Front left wheel speed sensor open or short to ground | Sensor, wire, connector |
C1201 | Front left wheel speed sensor signal error | Sensor, wire, connector, air gap, tone wheel |
C1203 | Front right wheel speed sensor open or short to ground | Sensor, wire, connector |
C1204 | Front right wheel speed sensor signal error | Sensor, wire, connector, air gap, tone wheel |
C1206 | Rear left wheel speed sensor open or short to ground | Sensor, wire, connector |
C1207 | Rear left wheel speed sensor signal error | Sensor, wire, connector, air gap, tone wheel |
C1209 | Rear right wheel speed sensor open or short to ground | Sensor, wire, connector |
C1210 | Rear right wheel speed sensor signal error | Sensor, wire, connector, air gap, tone wheel |
C1245 | Wheel speed sensor frequency error | Sensor, wire, connector, air gap, tone wheel |
C2313 | Front left outlet valve error | ECU, valve, wire, connector |
C2309 | Front left inlet valve error | ECU, valve, wire, connector |
C2321 | Front right outlet valve error | ECU, valve, wire, connector |
C2317 | Front right inlet valve error | ECU, valve, wire, connector |
C2329 | Rear left outlet valve error | ECU, valve, wire, connector |
C2325 | Rear left inlet valve error | ECU, valve, wire, connector |
C2337 | Rear right outlet valve error | ECU, valve, wire, connector |
C2333 | Rear right inlet valve error | ECU, valve, wire, connector |
C1604 | ECU hardware error | ECU internal or valve |
C2112 | Valve relay error | Valve relay or fuse |
C2402 | Motor pump error | Motor relay or fuse |
No. | Description | Condition | Recognition | Time |
01 02 03 04 05 06 07 08 09 | Motor Front left valve (In) Front right valve (In) Rear left valve (In) Rear right valve (In) Front left valve (Out) Front right valve (Out) Rear left valve (Out) Rear right valve (Out) | KEY ON ENG. OFF | Motor pump relay operation (Click sounds) Front left solenoid valve operation (Click sounds) Frotn right solenoid valve operation (Click sounds) Rear left solenoid valve operation (Click sounds) Rear right solenoid valve operation (Click sounds) Front left solenoid valve operation (Click sounds) Front right solenoid valve operation (Click sounds) Rear left solenoid valve operation (Click sounds) Rear right solenoid valve operation (Click sounds) | 2 seconds |
No. | Description | Recognition | Unit |
1 | Battery | Battery | Voltage |
2 3 4 5 | FL wheel speed SNSR FR wheel speed SNSR RL wheel speed SNSR RR wheel speed SNSR | Front left wheel speed sensor Front right wheel speed sensor Rear left wheel speed sensor Rear right wheel speed sensor | km/h |
6 7 8 9 10 11 12 13 14 15 16 17 18 | ABS SRI status Brake SW Motor pump relay Valve relay Motor pump status FL valve (In) FR valve (In) RL valve (In) RR valve (In) FL valve (Out) FR valve (Out) RL valve (Out) RR valve (Out) | Warning lamp Brake switch Motor relay Valve relay Motor Front left valve (In) Front right valve (In) Rear left valve (In) Rear right valve (In) Front left valve (Out) Front right valve (Out) Rear left valve (Out) Rear right valve (Out) | ON/OFF |
DTC No. C1200, C1203, C1206, C1209 Wheel speed sensor open or short to ground. | Probable cause |
The HECU determines that an open or short circuit has occured in more than one wire of a wheel speed sensor. | ● Malfunction of wheel speed sensor. ● Malfunction of wiring harness. ● Malfunction of HECU. |
DTC No. C1201, C1204, C1207, C1210 Wheel speed sensor signal error. | Probable cause |
Abnormal output signal from a wheel speed sensor other than an open or short circuit. | ● Improper installation of wheel speed sensor. ● Malfunction of wheel speed sensor. ● Malfunction of rotor. ● Malfunction of wheel bearing. ● Malfunction of wiring harness or connector. ● Malfunction of HECU. |
DTC No. C1161 Stop lamp switch continuity fault. | Probable cause |
Stop lamp switch fault and wiring open or short to ground. | ● Malfunction of wiring harness or connector. ● Malfunction of stop lamp switch. ● Blown the stop lamp bulb. ● Poor ground. |
DTC No. C1101, C1102 Voltage out of range. (Over and under voltage) | Probable cause |
The voltage of the HECU power supply drops lower than or rises higher than the specified value. If the voltage returns to the specified value, this code is no longer output. | ● Malfunction of wiring harness or connector. ● Malfunction of HECU. ● Blown ABS fuse. |
If battery voltage drops or rises during inspection, this code will be output as well. If the voltage returns to the standard value, the code is no longer output. Before carrying out the following inspection, check the battery level, and refill if necessary.
DTC No. C1604 HECU Hardware. HECU hardware error. (EEPROM and ECU failure) | Probable cause |
The HECU always monitors the solenoid valve drive circuit. It determines that there is an open or short-circuit in the solenoid coil or in a harness even if no current flows in the solenoid or through the HECU. | ● Malfunction of wiring harness or connector. ● Malfunction of HECU. |
DTC No. C2112 Valve relay error. (Including fuse failure) | Probable cause |
When the ignition switch is turned ON, the HECU switches the valve relay on and off during its initial check. During this time, voltage sent to the valve relay is compared to the voltage in the valve power monitor line. If no current is detected in the valve power monitor line, the HECU determines that there is an open circuit and DTC C2112 is recorded. | ● Malfunction of wiring harness or connector. ● Malfunction of HECU. ● Malfunction of valve relay. ● Poor ground. |
DTC No. C1245 Wheel speed sensor frequency error. | Probable cause |
Wrong toothed wheel on one of the 4 wheels cause the HECU to detect abnormal signal from wheel speed sensor. | ● Malfunction of wheel speed sensor. ● Improper installation of wheel speed sensor. ● Malfunction of rotor. ● Malfunction of wiring harness or connector. ● Malfunction of HECU. |
DTC No. C2309, C2313, C2317, C2321, C2325, C2329, C2333, C2337 Inlet/Outlet solenoid valve error. | Probable cause |
HECU detects failure in discord between electric feedback signal and valve operating signal. | ● Malfunction of wiring harness or connector. ● Malfunction of HECU. |
DTC No. C2402 Motor pump error. | Probable cause |
When the motor power line is normal but no signal is in detected in the motor monitor line. | ● Malfunction of wiring harness or connector. ● Malfunction of HECU. ● Poor ground. |
Powering the motor with the hi-scan (pro) will discharge the battery. Start and run the engine for a while after testing is complete.
