Easy step by step guide on how to retrieve and read Volkswagen OBD1 trouble codes.
Difficulty Level - 2
Step 1 - To access code use the switch located near the bottom of the dash on the driver’s side or locate the diagnostic connector in the console.
Step 2 - To activate code gathering turn the ignition switch on without starting the engine and push the rocker switch for five seconds and release or use a jumper wire cable 357 971 514E and connect it to the white connector in the center console.
Step 3 - Once the trouble codes start to flash you must remove the wire or release the switch. The trouble codes will displayed in four digit codes for example if the check engine light flashes twice, pauses, blinks two more times and pauses, blinks once more and is followed by two more blinks the trouble code number is 2212.
Step 4 - Reconnect the jumper wire or toggle the switch and leave in position for five seconds and wait for the code 4444 to appear again, turn the ignition switch off and remove the wire.
Step 5 - Clear codes by removing the negative battery cable for forty five seconds and reconnect.
Code Identification Table
Code 4444 No fault indicated
Code 2212 Throttle valve potentiometer fault
Code 2312 Engine coolant sensor fault
Code 2322 Intake air temperature sensor fault
Code 2342 Oxygen sensor fault
Code 2141 Knock sensor fault
Code 2341 Oxygen sensor control (vacuum or exhaust leak, wiring fault)
Code 2323 Air flow sensor fault
Code 4411 Fuel injector fault
Code 1111 Control unit
Code 0000 End of code transfer: 2.5 second flashes at 2.5 seconds interval