Volvo Fuel Injection - Auto Repair Codes

Scan Tool for Codes and Live Data for your Volvo Engine from $199 USD

The information below may apply to Volvo 850 and many other models

Step 4

Volvo EFI Code Reading

Connector Diagram

Auto Repair Manual - How to read codes (No Special Tools Needed)

1 Drive vehicle until it reaches operating temperature.

2 Stop the vehicle, place it in park or neutral and turn ignition OFF.

3 Attach a switch, (Click here for details) , or jumper wire to act as a switch as shown in above diagram.

4 Connect an LED tester or Voltmeter, (Click here for details) , between points A and B as shown on the diagram.

5 Switch ignition on.

6 Close switch for approximately 2 seconds.

NOTE -Error codes can only be retrieved one at a time.
NOTE -To get the next code close switch again within 20 seconds of last code.

7 Read codes as described in the Code Format Description below.

8 Press the continue button to enter the code numbers and get the code description(s).

Code Format Diagram

Code Format Description

• The first digit is indicated by the first series of flashes, likewise for the second digit, until all three digits have been flashed out.

• Each series of flashes is separated by a longer gap.

• Three series of flashes are used to indicate the three digit codes.

• 2 flashes, a short pause, then 1 flash follwed by, two 1-second flashes indicates the code number "212". Codes will be repeated after longer gap.

To move to the next screen click on the Continue button

 Reset Service Light...  Continue > 

Note on Example Model(s): Volvo 850
The example model(s) shown, Volvo 850 for this auto repair service are only an indication to help you. There may be many other models that apply to this connector. Click above link to see the complete vehicle coverage list.