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Check The Power Source Of ESP Control Module

WARNING: This page is about a different car, the 2018 Kia Cadenza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the connector from the ESP control module.
  2. Turn the ignition switch ON, measure the voltage between terminal 29 of the ESP control module harness side connector and body ground.

    Specification:  approximately B+

    Fig 1: Measure Voltage Between Terminal 29 Of ESP Control Module Harness Side Connector & Body Ground
    G12294523Courtesy of KIA MOTORS AMERICA, INC.
  3. Is voltage within specification?

    YES 

    • Check for poor ground.

    NO 

    • Check the harness or connector between the fuse (10A) in the engine compartment junction block and the ESP control module. Repair if necessary.
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