Component Inspection

WARNING: This page is about a different car, the 2007 Kia Optima, 2007 Kia Magentis, 2006 Kia Optima, and 2006 Kia Magentis. However, it is still accessible from the selected car via links, so may be relevant.

Ignition "OFF".
Disconnect ESC switch connector.
Press the ESC switch.
Measure resistance between terminal "3" of the ESC switch harness connector and terminal "4" of the ESC switch harness connector
Specification: Approx. below 1 Ω

Fig 1: Measuring Resistance Between Terminal
Courtesy of KIA MOTORS AMERICA, INC.
Is the measured resistance within specifications?
YES : --> Fault is intermittent caused by faulty ESC switch or was repaired and HECU memory was not cleared. Go to the applicable troubleshooting procedure.

NO : --> Substitute with a known-good ESC switch and check for proper operation. If problem is corrected, replace ESC switch and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.