Kia Niro: ESP(Electronic Stability Program) System / Troubleshooting

Failure Diagnosis
1.

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

2.

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

3.

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

4.

Information on ABS fail-safe is identical to the fail-safe in systems where ESP is not installed.

Memory of Fail Code

1.

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

2.

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

Failure Checkup

1.

Initial checkup is performed immediately after the HECU power on.

2.

Valve relay checkup is performed immediately after the IG2 ON.

3.

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

Countermeasures in Fail

1.

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

2.

Turn the valve relay off.

3.

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

Warning Lamp ON

1.

ESP warning lamp turn on for 3sec after IGN ON.

2.

ESP function lamp blinks when ESP Act.

3.

If ESP fail occured, ESP warning turns ON.

4.

ESP OFF lamp turn on in case of

ESP Switch OFF

3sec after IGN ON

Description and operation
Description of ESP Electronic Stability Program (ESP) recognizes critical driving conditions, such as panic reactions in dangerous situations, and stabilizes the vehicle by wheel-indivi ...

Front Wheel Speed Sensor Components and components location
Components 1. Front wheel speed sensor 2. Front wheel speed sensor cable ...

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