Operation 13: Diagnostic of tank seal and Secondary Air Injection (AIR) system
Observe:
- Engine running at idle:
Display on VAS 5051:
Fig 1: Displaying On VAS 5051 - Operation 13, Diagnostic Of Tank Seal And Secondary Air Injection System (1 Of 2)
1 - Enter display group
- Select function "191" in button field -2- for "display group number 191" and press Q button to confirm input.
Display on VAS 5051:
Fig 2: Displaying On VAS 5051 - Operation 13, Diagnostic Of Tank Seal And Secondary Air Injection System (2 Of 2)
- Activate basic setting by pressing button -A-.
NOTE:
- During diagnostic of the Secondary Air Injection (AIR) system, the Secondary Air Injection (AIR) pump will run for several seconds.
- In case diagnostic leak test is not started, open fuel filler cap briefly (to release pressure).
- Check indication in display fields -2- and -4-.
DISPLAY GROUP 191: TANK SEAL AND SECONDARY AIR INJECTION (AIR) SYSTEM (BANK 1) DIAGNOSTIC
| Display fields | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 191: Tank seal and Secondary Air Injection (AIR) system (Bank 1) diagnostic | ||||
| Display | - | - | xx % | - |
| Indicated | Leak detection result | Diagnostic condition | Relative air mass bank 1, Secondary Air Injection (AIR) system | Diagnostic condition |
| Functional range | Test OFF Test ON System OK System not OK |
Test OFF Test ON System OK System not OK |
||
| Specified value | System OK | more than -20% | System OK | |
| Note | If "System not OK" is displayed: Check DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | If "System not OK" is displayed: Check DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | ||
If specified values "Syst. OK" are obtained:
- Click on < button
- Perform next work step.