Adaptation Values of ECM For Engine Electronics, Erasing
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Adaptation values in the Engine Control Module (ECM) must be erased if a fuel injector or one of the oxygen sensors is replaced, or else vehicle may suffer from driveability problems.
Special tools and equipment
- VAG1551 scan tool (or VAG1552 mobile scan tool) with VAG1551/3B cable
Procedure
- Connect VAG1551 scan tool (VAG1552). Then switch ignition on and select the Engine Control Module (ECM) using address word 01.
Connecting scan tool and selecting ECM. Refer to " Scan Tool Testing/Scan Tool Connecting and Initial Checks " Testing and Inspection
Indicated on display:
Rapid data transfer HELP
Select function XX
- Operate scan tool according to indications on display:
- Press buttons -1- and -0- to select function 10 "Adaptation" and press -Q- button to confirm input.
Indicated on display:
Adaptation
Enter channel number XX
- Press buttons -0- and -0- to select channel number 0 and press -Q- button to confirm input.
Indicated on display:
Adaptation Q
Erase adaptation values ?
- Press -Q- button to confirm input.
Indicated on display:
Adaptation ->
Adaptation values have been erased
- Press-> key to complete adaptation.
- Adapt Engine Control Module (ECM) to throttle valve control module.
- Read readiness code. Refer to Monitors, Trip and/or Drive Cycle (Readiness Codes)/Reading Readiness Code. Testing and Inspection
If DTC memory was erased or the Engine Control Module (ECM) was disconnected from the continuous B+ supply, the readiness code must be re-generated. Refer to Monitors, Trip and/or Drive Cycle (Readiness Codes)/Generating Readiness Code. Testing and Inspection