Monitor KDS/GDS Data

Connect KDS/GDS to Data Link Connection (DLC).
Warm up the engine to normal operating temperature.
Check the "Current Data" about related DTC with KDS/GDS.

Fig 1: Scantool Display - Engine At Idle In Cold Condition
Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Scantool Display - Engine Idle After Warm-Up
Courtesy of KIA MOTORS AMERICA, INC.

A: HO2S downstream (S2) performs max Heating (Approx. 9.00%) after engine cold-start.
Are the parameters displayed correctly?
YES
- Fault is intermittent caused by poor contact in the sensor's and/or PCM's connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair " procedure.
NO
- Go to "Terminal and Connector Inspection " procedure.