LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hyundai >> 2016 >> Azera Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2104: Limp Home Mode - Forced Idle >> Scantool Diagnostics >> Monitor GDS Data
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Monitor GDS Data

  1. Connect GDS to Data Link Connector (DLC).
  2. IG "ON" & Monitor that any different DTC (Diagnostic Trouble Code) is existed.

    (There will be at least one more DTC which causes this DTC P2104 to retrieve)

  3. Repair the DTCs cause DTC P2104 first according to the designated trouble shooting guide.

    (After repairing the DTCs cause DTC P2104, don't forget to do "ETC Initialization" as follows.)

  4. Is the same DTC occurred?

    YES 

    • Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    * Procedure of ETS Initialization

    1. Erase the trouble codes on PCM
    2. Turn the ignition key off and keep this condition until the main relay is turned off. (It will take 10sec.)
    3. Turn ignition key on more than 1 second to record the throttle motor position on the EEPROM.