Test requirements
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- Engine at idle
- Coolant temperature greater than 85° C (display group 4, display field 3)
Indicated on display
Fig 1: VAG1551 Scan Tool Display - Generating Readiness Code: 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: VAG1551 Scan Tool Display - Generating Readiness Code: 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
Fig 3: VAG1551 Scan Tool Display - Generating Readiness Code: EVAP Canister Purge Regulator Valve (3 Of 3)
- 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 during diagnosis | 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 |
|||
| Value | 0% to 100% | -5.5 to 6.3% | xx to 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) CANISTER PURGE REGULATOR VALVE -N80-, CHECKING . | |||||
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If the specified value "EVAP OK" is reached:
- Press -C- button