Connect scantool to Data Link Connector(DLC).
Engine "ON" and Head lamp"ON"
Clear the DTC
Ignition "OFF"
Engine "ON" and Head lamp"ON"
Connect scantool and selet "Diagnostic Trouble Codes(DTCs)" mode and Read "DTC Status" parameter.
Is the DTC B1621 present?
![]() | ▶ Substitute with a known - good ECU and check for proper operation. If the problem is corrected, replace ECU and go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Fault is intermittent caused by poor contact in the sensor’s and/or AFLS ECU’s connector or was repaired and AFLS ECU 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. |
* REFERENCE*
Download correct parameter When ECU replace.
In case of not supplied to Air-suspension vehicle, perform the initialization after downloading corrcet parameter.
* Vehicle condition
Park at lever land
Vehicle speed ≤ 5km/h
Engine r.p.m > 500rpm
Connect GDS
CAN communication is normal status
Battery voltage > 10.5V
Headlamp S/W ON, AFLS ON
① Parameter Download
Fig.1) Select the Parameter Download
Fig.2) Parameter Download
Fig.3) Parameter Download - LHD & Manual Gear Suspension 1st
Fig.4) Parameter Download - RHD & Manual Gear
Fig.5) Parameter Download - LHD & Auto Gear
Fig.6) Parameter Download - RHD & Auto Gear
② Calibration
Fig.7) Select the Calibration
Fig.8) Calibration