10305590

FAILURE DIAGNOSIS

In principle, ESP and TCS controls are prohibited in case of ABS failure.

When ESP or TCS is fail, only the failed system control is prohibited.

However, when the solenoid valve relay should be turned off in case of ESP fail, refer to the ABS fail-safe.

Information on ABS fail-safe is identical with the fail-safe in which ESP is not installed.

MEMORY OF FAIL CODE

It keeps the code as far as the backup lamp power is connected. (O)

It keeps the code as far as the HCU power is on. (X)

FAILURE CHECKUP

Initial checkup is performed immediately after the HECU power on.

Valve relay checkup is performed immediately after the IG2 ON.

It executes the checkup all the time while the IG2 power is on.

Initial checkup is made in the following cases.

(1)

When the failure is not detected now

(2)

When ABS and ESP are not in control.

(3)

Initial checkup is not made after ECU power on.

(4)

If the vehicle speed is over 409 mph(8 km/h) when the brake lamp switch is off.

(5)

When the vehicle speed is over 24.8 mph(40 km/h).

Though, it keeps on checkup even if the brake lamp switch is on.

When performing ABS or ESP control before the initial checkup, stop the initial checkup and wait for the HECU power input again.

Judge fail in the following cases.

(1)

When the power is normal.

(2)

From the point in which the vehicle speed reaches 4.9 mph(8 km/h) after HECU power on.

COUNTERMEASURES IN FAIL

Turn the system down and perform the following actions and wait for HECU power OFF.

Turn the valve relay off.

Stop the control during the operation and do not execute any until the normal condition recovers.

WARNING LAMP ON

ABS warning lamp turns on when ABS is fail.

TCS warning lamp turns on when TCS is fail.

ESP operation lamp turns on and TCS OFF warning lamp blinks when ESP is fail.

When power voltage and valve relay voltage are abnormal, input/output related failure judgment is not made.

DIAGNOSTIC TROUBLE CODE CHART

Follow an inspection procedure of a detected DTC in the chart below.

note

EBD △ - warning lamp "ON", in case of errors on more than 2 wheels.

DTC	DESCRIPTION	WARNING LAMP "ON"				DTC MEMORY	REMARK
DTC	DESCRIPTION	ABS	EBD	TCS	ESP	DTC MEMORY	REMARK
C1101	Battery voltage high	○	○	○	○	○
C1102	Battery voltage low	○	○	○	○	○
C1200	Wheel speed sensor FR-LH open/short	○	○	○	○	○
C1201	Wheel speed sensor FR-LH range/performance/intermittent	○	△	○	○	○
C1202	Wheel speed sensor FR-LH invalid/no signal	○	△	○	○	○
C1203	Wheel speed sensor FR-LH open/short	○	△	○	○	○
C1204	Wheel speed sensor FR-LH range/performance/intermittent	○	△	○	○	○
C1205	Wheel speed sensor FR-LH invalid/no signal	○	△	○	○	○
C1206	Wheel speed sensor FR-LH open/short	○	△	○	○	○
C1207	Wheel speed sensor FR-LH range/performance/intermittent	○	△	○	○	○
C1208	Wheel speed sensor FR-LH invalid/no signal	○	△	○	○	○
C1209	Wheel speed sensor FR-LH open/short	○	△	○	○	○
C1210	Wheel speed sensor FR-LH range/performance/intermittent	○	△	○	○	○
C1211	Wheel speed sensor RR-RH invalid/no signal	○	△	○	○	○
C1604	ECU hardware error	○	○	○	○	○
C2112	Valve relay error	○	○	○	○	○
C2380	ABS/TCS/ESP valve error	○	○	○	○	○
C2402	Motor - electrical	○	×	○	○	○
C1274	G sensor - electrical	○	×	○	○	○	4WD
C1275	G sensor - signal	○	×	○	○	○	4WD
C1503	TCS switch error	×	×	○	○	○
C1605	CAN harware error	×	×	○	○	○
C1611	CAN time-out EMS	×	×	○	○	○
C1612	CAN time-out TCU	×	×	○	○	○
C1613	CAN wrong message	×	×	○	○	○
C1616	CAN bus off	×	×	○	○	○
C2227	Excessive temperature of brake disc	×	×	○	○	○
C1112	Sensor source voltage	×	×	○	○	○
C1235	Pressure sensor(primary) - electrical	×	×	×	○	○
C1237	Pressure sensor(secondary) - electrical	×	×	×	○	○
C1259	Steering angle sensor - electrical	×	×	×	○	○
C1260	Steering angle sensor - signal	×	×	×	○	○
C1282	Yaw rate & lateral G sensor - electrical	×	×	×	○	○
C1283	Yaw rate & lateral G sensor - signal	×	×	×	○	○
C1513	Brake switch error	×	×	×	○	○