P2106

DTC P2106 ETC (ELECTRONIC THROTTLE CONTROL) SYSTEM MALFUNCTION - FORCED LIMITED POWER

GENERAL DESCRIPTION
If a malfunction occurs in the Electronic Throttle Control (ETC) system, the ECM will control the engine from predetermined data stored in its memory or stop the engine if a safety problem is anticipated, as an Emergency Operation (Limp-Home) mode. The purpose of Limp-Home mode is to control the engine as close as possible to normal engine operation if a malfunction occurs. When the DTC related to ETC system is recorded by the ECM, then this DTC will be set. This DTC
only indicates malfunction related to ETC system has occurred and engine is in Limp-Home mode. DO ALL REPAIRS associated malfunction with ETC system.

DTC DESCRIPTION
ECM sets DTC P2106 to indicate ETC system malfunction has occurred and engine is in Limp-Home mode. The ECM reduces engine torque by 25% of normal value after setting the DTC, as an emergency operation (Limp-home) mode.

DTC Detecting Condition:

MONITOR DTC STATUS
1. Connect scan tool and select "Diagnostic Trouble Codes (DTCs)" mode.
2. Press F4 (DTAL) to select DTC information from the DTCs menu.
3. Confirm that "DTC Readiness Flag" indicates "Complete". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions.




4. Read "DTC Status" parameter.
5. Is parameter displayed "History (Not Present) fault"?

NOTE:
- History (Not Present) fault : DTC occurred but has been cleared.
- Present fault : DTC is occurring at present time.

YES - Fault is intermittent caused by poor contact in the sensor's and/or the ECM's connector, which was repaired but ECM 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 - Monitor specific DTC for P0121, P0122, P0123, P0221, P0222, P0223, P0642, P0643, P0698, P0699, P2122, P2123, P2127, P2128 or P2138. Do ALL REPAIRS associated with that codes. Go to troubleshooting procedures for setting the DTCs.

VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scan tool and select "Diagnostic Trouble Codes (DTCs)" mode.
2. Press F4 (DTAL) and confirm that "DTC Readiness Flag" indicates "Complete". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions.
3. Read "DTC Status" parameter.
4. Is parameter displayed "History (Not Present) fault"?

YES - System performing to specification at this time. Clear the DTC

NO - Go to the applicable troubleshooting procedure.