Volkswagen OBD1 Trouble Codes
The following trouble codes are specific to Volkswagen. You may also see Audi trouble codes, since Volkswagen and Audi are of the same parent company.
Volkswagen Trouble Codes Access
Without OBD Scan Tool
Locate the diagnostic connector located in the center console or the trunk, you will also need two wire jumpers. Some vehicles will not allow the codes to be read without using the manufacturer's scan tool. To access the trouble codes, proceed as follows:
- Turn the ignition switch on until the dash lights up.
- Insert a jumper wire into the black connector and run it to the other black connector, do the same for the white diagnostic connector. It must maintain the connection for 5 seconds, then remove the jumper wires.
- The check engine light will flash the first of the 4 digit code. For example, two flashes, pause, three flashes, pause, four flashes, pause, then two flashes the code is "2342 oxygen sensor failure".
- Leave the ignition switch on in case there are more than one code in the system, record all faults.
- Continue repairs until code #4444 or #0000 which is 3 second flashes at 3 second intervals, this is the end of the code gathering, turn the ignition switch off.
Volkswagen Trouble Codes Clearance
All trouble codes must be cleared from the ECU’s memory after repairing the faults. Otherwise, code(s) would remain in the ECU’s memory indefinitely and would appear along with a new code in the event of a future problem. To clear the trouble codes, proceed as follows:
- Turn off the ignition switch.
- Reinstall the black and white jumper wires as before and turn the ignition switch on.
- Remove the jumper wires after 3 seconds.
- Codes are clear when #4444 code is displayed, turn off the ignition switch, the codes are now cleared.
Volkswagen Generic Trouble Codes
- Click the table header to sort the table data by the respective column heading.
- Type keyword(s) in the table’s search box for a quick display of the searched data.
| Code(s) | Description |
|---|---|
| 0000 | End of code transfer: 2.5 second flashes at 2.5 seconds interval |
| 1111 | Control unit |
| 2141 | Knock sensor fault |
| 2212 | Throttle valve potentiometer fault |
| 2312 | Engine coolant sensor fault |
| 2322 | Intake air temperature sensor fault |
| 2323 | Air flow sensor fault |
| 2341 | Oxygen sensor control (vacuum or exhaust leak, wiring fault) |
| 2342 | Oxygen sensor fault |
| 4411 | Fuel injector fault |
| 4444 | No fault indicated |