Code Control Module (scan tool function 07)
The Transmission Control Module (TCM) can be coded.
Procedure
- Connect VAS5051 tester or VAG1551 scan tool and select Transmission Control Module (TCM) using "address word" 02. See «VAS5051 TESTER OR VAG1551 SCAN TOOL, CONNECTING AND SELECTING FUNCTIONS»(/audi/a6/c5-1997-2001/remont/automatic-trans/#on-board-diagnostic-obd-5-spd-automatic-transmission-01v__vas5051-tester-or-vag1551-scan-tool) .
Ignition must remain switched on for this.
Indicated on display
Scheme 771
Print out control module identification
- Switch on printer by pressing the print button (indicator lamp in button lights up).
- Press buttons -0- and -1-.
- Press -Q- button to confirm input.
Indicated on display
Scheme 772
Control module identification is displayed
Depending on the control module version (software version), control module may indicate a different identification than shown in this example. Allocation of the control module
See Parts catalog.
Clarification of display
- 4B0927156BT: Part number
- AG5 01V: Automatic Transmission, 5-speed 01V
- 2,8l 5V: Engine type
- USA: Market, USA and Canada
- 1416: 14 = software version, 16 = data version
- Coding 00002: Coding (see «CODING TABLES»(/audi/a6/c5-1997-2001/remont/automatic-trans/#on-board-diagnostic-obd-5-spd-automatic-transmission-01v) )
- WSC 00000: Factory identification of VAG1551, with which the last coding was performed
- Press --> button.
Transmission control module identification can only be printed out when printer is switched on.
Indicated on display
Scheme 773
Note. Read Transmission Control Module (TCM) identification to determine which transmission/engine combination is present in this particular case, see clarification above. Then use coding table to determine whether the appropriate code is entered.
- Press buttons -0- and -7-. This selects "Coding Control Module", function 07.
Note. Coding can only be performed with ignition on and selector lever in position "P" or "N". Accelerator pedal must be in idle position. Vehicle must be stationary and engine must not be started.
Indicated on display
Scheme 774
- Press -Q- button to confirm input.
Indicated on display
Scheme 775
- Enter code
Note. Use control module identification to retrieve appropriate code from CODING TABLES . Enter it into tester. The Dynamic Shifting Program (DSP) should remain on at all times if possible.
- Press -Q- button to confirm input.
Note. DTC memory in the control module is automatically erased following coding.
- Press --> button.
Indicated on display
Scheme 776
- Check control module version (press buttons -0- and -1-), confirm input with Q button and check coding. See «ON BOARD DIAGNOSTIC (OBD), INITIATING»(/audi/a6/c5-1997-2001/remont/automatic-trans/#on-board-diagnostic-obd-5-spd-automatic-transmission-01v__output-diagnostic-test-mode-dtm-scan) .
When indicated on display: An attempt was made to enter a coding that is not valid or unrecognized by the control module.
Scheme 777
Note. If an incorrect coding is entered, the control module will retain the old coding.
Indicated on display
Scheme 778
Note. A control module identification that has been incorrectly entered is only indicated alongside the old coding for older VAG1551 tester cards.
When indicated on display
Scheme 779
An attempt was made to perform coding in an unauthorized coding condition, for example, with vehicle in a driving mode.
Scheme 780
- To determine if engine/transmission combination is equipped with E-Gas, see «CODE LETTERS, ENGINE/TRANSMISSION APPLICATIONS, RATIOS, EQUIPMENT»(/audi/a6/c5-1997-2001/remont/automatic-trans/#overhaul-01v) .
Scheme 781
- To determine if engine/transmission combination is equipped with E-Gas, see «CODE LETTERS, ENGINE/TRANSMISSION APPLICATIONS, RATIOS, EQUIPMENT»(/audi/a6/c5-1997-2001/remont/automatic-trans/#overhaul-01v) .