Test requirements
WARNING: This page is about a different car, the 2004 Audi A6, 2003 Audi A6, 2002 Audi A6, 2001 Audi A6, and 2000 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.
- Engine at idle
- Coolant temperature greater than 85 °C (185 °F) (display group 004, display field 3)
Indicated on display
Fig 1: VAG 1551 Scan Tool Display - Work Step 3, Diagnostic Of Evap Canister Purge Regulator Valve (1 Of 3)
- Press button -0- and -4- to select function "Basic Setting" and confirm input with -Q- button.
Indicated on display
Fig 2: VAG 1551 Scan Tool Display - Work Step 3, Diagnostic Of Evap Canister Purge Regulator Valve (2 Of 3)
- Press button -0-, -7- and -0- to select "display group number 070" and confirm input with -Q- button.
When indicated on display
- Check specified value in display field 4:
DISPLAY GROUP 070: DIAGNOSTIC OF EVAP CANISTER PURGE REGULATOR VALVE
| Display fields | ||||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||
| Display group 070: Diagnostic of EVAP canister purge regulator valve | ||||||
| Display | xx % | xx.x % | xx % | Test ON | ||
| Indicates | EVAP valve duty cycle during diagnosis | Oxygen sensor control deviation | Relative Ground via EVAP valve | Diagnostic condition | ||
| Work Range | min.: 0 % max.: 100 % |
min.: -25.0 % max.: 25.0 % |
Test OFF Test ON EVAP OK EVAP n.OK Abort |
|||
| Specified Value | 0 to 100 % | -5.5 to 6.3 % | xx...xx % (1) | EVAP OK | ||
| Note: | If "EVAP n. OK" is displayed: Check DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . Check EVAP canister purge regulator valve -N80-. See EVAPORATIVE EMISSION (EVAP) SYSTEM, CHECKING . | |||||
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If the specified value "EVAP OK" is reached:
- Press -C- button