Connect GDS to Data Link Connector(DLC).

Ignition "ON".

Perform each "Valve" in "Actuation Test" with GDS.

Monitor each "Valve" parameters in "Current Data" with GDS.

Check for operation sound of valve while actuating each valve.

Fig.1) Front LH Inlet Valve Actuation Test

Fig.2) Front RH Inlet Valve Actuation Test

Fig.3) Rear LH Inlet Valve Actuation Test

Fig.4) Rear RH Inlet Valve Actuation Test

Fig.5) Front LH outlet Valve Actuation Test

Fig.6) Front RH outlet Valve Actuation Test

Fig.7) Rear LH outlet Valve Actuation Test

Fig.8) Rear RH outlet Valve Actuation Test

Fig.9) Front LH TCS Valve Actuation Test

Fig.10) Front RH TCS Valve Actuation Test

Fig.11) Front RH Shuttle Valve Actuation Test

Fig.12) Front LH Shuttle Valve Actuation Test

Does each valve operates properly?

▶ Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors(and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage. ▶ Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ Substitute with known-good HECU and then check for proper operation. If problem is corrected, replace HECU and then go to "Verification of Vehicle Repair" procedure.

caution

In case of replacing HECU, perform following procedures.

1. "ASP Calibration" for steering angle sensor offset correction.

2. "Longitudinal G-Sensor Calibration" for longitudinal sensor offset correction.

3. "Variant Coding".