Work step: 7
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)
Display will appear as shown
- Press -1-, -3- and -1- buttons to input display group 131.
- Press -Q- button to confirm input.
Display will appear as shown (1 to 4 = display fields)
- Run engine at idle and check specifications after 5 seconds.
DISPLAY GROUP: 131, FUNCTION: 04
| Display fields | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group: 131 Function: 04 | ||||
| Display | xxxx rpm | - | xxxx ms | xxxx xxxx |
| Indicated | Engine speed | - | HO2S aging | Diagnostic conditions |
| Specification | 800 to 880 rpm - |
- | -1200 to 1200 ms Delay time by O2S control |
xxxx x100 x = Not relevant |
| Working range | 800 to 6000 rpm | - | -1200 to 1200 ms | |
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.