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Readiness Code, Generating




Readiness Code, Generating

Special Tools and Equipment







- VAG1788/10 RPM adjuster

Requirements
- Vehicle stationary
- Vehicles with automatic transmission Selector lever in P or N.
- Electrical consumers switched off (radiator fan must NOT run during test).
- A/C switched off.
- Coolant temperature at least, 80 °C, see Display group 004, display field 3.
Important: Drive engine warm via road test if possible.


NOTE: If, during a work step, the test result is indicated as "OK" immediately after selecting a display group, the test has already been carried out and it is OK to continue on to the next work step.


Work step 1: Check DTC Memory

Test requirement:
- Engine not running, ignition switched on.

- Connect VAS5051 tester or VAG1551 scan tool and select control module for engine electronics using "address word" 01 [1][2]Scan Tool Connecting and Initial Checks

When indicated on display


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -2- to select "Check DTC memory" and press -Q- button to confirm input.

Number of stored DTCs or "No DTC recognized" will be indicated on display.

If a DTC is stored:


X malfunctions recognized!


- Repair malfunction, erase DTC memory. Road test vehicle and then check DTC memory as a control measure.

If no DTCs are stored:
- Press -> button.

Work step 2: Erase DTC Memory

Test requirement:
- Engine not running, ignition switched on.

When indicated on display


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -5- to select "Erase DTC memory" and press -Q- button to confirm input.


NOTE: When DTC memory is erased, readiness code is reset and must therefore be re-generated.


When indicated on display


Rapid data transfer ->
DTC Memory is erased!


- Press -> button.

Work step 3: Adapt throttle valve control module to Engine Control Module (ECM)

Test requirement:
- Engine not running, ignition switched on.

When indicated on display


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -4- to select "Initiate basic setting" and press -Q- button to confirm input.

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -6- and -0- to select "display group number 060" and press -Q- button to confirm input.

When indicated on display


System in basic setting 60 ->
1 2 3 4


- Check specified values in display fields 3 and 4


Display group 060:






If specified value "ADP OK" is obtained:
- Press -C- button.

Work step 4: Kick down function, adapting 1)

1) Only vehicles with automatic transmission

Test requirement:
- Engine not running, ignition switched on.

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -6- and -3- to select "display group number 063" and press -Q- button to confirm input.

When indicated on display


System in basic setting 63 ->
1 2 3 4


NOTE: There will be a prompt: "Operate kickdown".


- Depress accelerator pedal completely, past kick down point, and hold down.


NOTE: During adaptation of the kick down point, the VAG1551 will display "Kick down ADP in progress". After successful adaptation of the kick down point, the VAG1551 will display "Kick down ADP OK".


- Check specified value in display field 4:


Display group 063:






If specified value "ADP OK" is obtained:
- Press -C- button.

Work step 5: Check operating condition of oxygen sensor control

- Start engine (for a vehicle with manual transmission: engage clutch).


NOTE: After starting engine, it may be necessary to select the Engine Control Module (ECM) again using "address word" 01 and the function "Initiate basic setting" using "04".


- Install VAG1788/10 RPM adjuster on accelerator pedal and raise engine speed to 2000 RPM.

Test requirement:
- Engine running at 2000 RPM.

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -3- and -0- to select "display group number 030" and press -Q- button to confirm input.

When indicated on display


System in basic setting 30 ->
1 2 3 4


- Check oxygen sensor status in display fields 1 and 2.


NOTE: A few minutes may pass until a diagnostic result is reached.












- Do not start test until indication in display field 1 has reached "111" at least once and indication in display field 2 has reached "110" at least once.

Work step 6: Diagnostic of oxygen sensor aging before catalytic converter

Test requirement:
- Engine continues to run at 2000 RPM.

When indicated on display


Basic Setting Q ->
Enter display group number XXX


- Press buttons -0-, -3- and -4- to select "display group number 034" and press -Q- button to confirm input.

When indicated on display


System in basic setting 34 ->
1 2 3 4


- Check specified value in display field 4:


NOTE: A few minutes may pass until a diagnostic result is reached.


Display Group 034:






If specified value "B1-S1 OK" is obtained:
- Press -C- button.

Work step 7: Diagnostic of operational readiness of oxygen sensor behind catalytic converter

Test requirement:
- Engine continues to run at 2000 RPM.

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -3- and -6- to select "display group number 036" and press -Q- button to confirm input.

When indicated on display


System in basic setting 36 ->
1 2 3 4


- Check specified value in display field 2:


Display Group 036:






If specified value B1-S2 OK" is obtained:
- Press -C- button.

Work step 8: Diagnostic of oxygen sensor control system

Test requirement:
- Engine continues to run at 2000 RPM.

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -3- and -7- to select "display group number 037" and press -Q- button to confirm input.

When indicated on display


System in basic setting 37 ->
1 2 3 4


- Check specified value in display field 4:


Display Group 037:






If specified value "Syst. OK" is obtained:
- Press -C- button.

Work step 9: Diagnostic of catalytic converter

Test requirement:
- Engine continues to run at 2000 RPM.

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -4- and -6- to select "display group number 046" and press -Q- button to confirm input.

When indicated on display


System in basic setting 46 ->
1 2 3 4


- Check specified values in display fields 2 and 4:


NOTE: Catalytic converter diagnostic lasts approx. 60 seconds.


Display Group 046:






If specified value "Cat B1 OK" is obtained:
- Press -C- button.

Work step 10: Diagnostic of Secondary Air Injection (AIR) system

- Remove VAG1788/10 RPM adjuster and leave engine running at idle.

Test requirement:
- Engine running at idle:


NOTE: During diagnostic of the Secondary Air Injection (AIR) system, the Secondary Air Injection (AIR) pump will run for several seconds.

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -7- and -7- to select "display group number 077" and press -Q- button to confirm input.

When indicated on display


System in basic setting 77 ->
1 2 3 4

- Check specified value in display field 4:


Display Group 077:






If specified value "Syst. OK" is obtained:

- Press -C- button.

Work step 11: Diagnostic of tank ventilation valve

Test requirement:
- Engine running at idle:

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -7- and -0- to select "display group number 070" and press -Q- button to confirm input.

When indicated on display


System in basic setting 70 ->
1 2 3 4


- Check specified value in display field 4:


NOTE: If test is not initiated or if indication switches from "Test ON" to "Test OFF", depress accelerator pedal briefly, test will be repeated.


Display Group 070:






If specified value "TW OK" is obtained:
- Press -C- button

Work step 12: Diagnostic of tank seal

Test requirements:
- Engine running at idle:

- Fuel filler cap opened briefly (to reduce pressure).

When indicated on display


Basic Setting Q
Enter display group number XXX


- Press buttons -0-, -7- and -1- to select "display group number 071" and press -Q- button to confirm input.

When indicated on display


System in basic setting 71 ->
1 2 3 4


NOTE:
- Test lasts approx. 90 seconds.
- When the diagnostic of tank seal is performed several times in a row, the fuel filler cap must be opened briefly before each test to release pressure.


- Check specified value in display field 4:


Display Group 071:






If specified value "Syst. OK" is obtained:
- Press -> button.

Indicated on display (function selection)


Rapid data transfer HELP
Select function XX


Work step 13: Read readiness code

- Read readiness code Readiness Code Reading

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