Work step: 10
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen Golf, 1999 Volkswagen Cabrio, 1998 Volkswagen Jetta, and 1998 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic test: Oxygen Sensor (O2S) aging (regulating frequency extended)
- Vehicle stationary
- All electrical consumers turned OFF (coolant fan must not run)
Display will appear as shown
- Press buttons -1-, -3- and -0- to input display group 130.
- Press -Q- button to confirm input.
Display will appear as shown (1 to 4 = display fields)
- Raise engine RPM between 2200 and 2800 then check specifications.
DISPLAY GROUP: 130 FUNCTION: 04
| Display fields | ||||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||
| Display group: 130 Function: 04 | ||||||
| Display | xxxx rpm | xx secs | x | xxxx xxxx | ||
| Indicated | Engine speed | Seconds | Period counter | Diagnostic conditions | ||
| Specific. | 2200 to 2800 rpm | 0 to 2.8 secs O2S control duration (one complete cycle) |
6(1) HO2S slopes recognized (requires 4 slopes) |
xxxx x100 x = Not relevant |
||
| Working range | 800 to 6000 rpm | 0.00 to 15.00 secs | 0 to 4 | - | ||
|
||||||
RELEVANCE OF 8 DIGIT NUMBER BLOCK IN DISPLAY FIELD 4
| Relevance of 8 digit number block in display field 4 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Specifications of diagnostic conditions |
| 1 | CYCLE Bit = Diagnosis completed | |||||||
| 0 | Diagnosis malfunction free | |||||||
| 0 | DTC memory malfunction free | |||||||
- Press -C- button.