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 three digits are indicated by three series of flashes.

• The first series of flashes indicates the first digit, the second series of flashes indicates the second digit, and the third series of flashes indicates the third digit, until all three digits have been flashed.

• Each series is indicated by 0.5-second flashes, separated by 0.5-second pauses.

• A 3.5-second pause separates each series of flashes.

• Code "212" is indicated by two 0.5-second flash, followed by a 3.5-second pause, a .5 second flash, a further 3.5-second pause, then a further two 0.5-second flashes.

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.