Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK DTC RELATING TO HO2S
1. Connect a Hi-Scan (Pro) to the data link connector.
2. Turn the ignition switch ON and monitor any other DTCs relating to HO2S.
Is DTC relating to HO2S?
1. No: Go to next step.
2. Yes: Do all repairs associated with those codes before proceeding with this procedure.
CHECK HO2S AND ECM CONNECTORS
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. See CONNECTOR INSPECTION PROCEDURE .

Are all connectors good?
1. Yes: Go to next step.
2. No: Repair or replace it.
CHECK INTERFERENCE IN HO2S
1. Turn ignition switch to OFF position and disconnect HO2S and ECM connectors.
2. Measure the resistance between terminal 6 and 1 of the HO2S harness connector.
3. Measure the resistance between terminal 6 and 2 of the HO2S harness connector.
4. Measure the resistance between terminal 6 and 3 of the HO2S harness connector.
5. Measure the resistance between terminal 6 and 4 of the HO2S harness connector.
  1. Specifications: above 400 kΩ
    
    Fig 1: Checking Interference In HO2S
    Courtesy of KIA MOTORS AMERICA, INC.
Is each resistance within specification?
1. Yes: Proceed with ECM PROBLEM INSPECTION PROCEDURE .
2. No: Repair short circuit in harness.