Subaru Crosstrek Service Manual: Dtc b2220 break the wire of ign

DTC detecting condition:

There was voltage malfunction caused by poor contact of IGN power supply circuits.

Trouble symptom:

Airbag indicator does not illuminate.

Wiring diagram:

Multi-function display (MFD) system Multi-function Display (MFD) System > WIRING DIAGRAM">

1.CHECK DTC.

Read the DTC of the MFD using the Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)">

Is DTC B2220 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2220 BREAK THE WIRE OF IGN">Go to Step 2.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2220 BREAK THE WIRE OF IGN">Go to Step 5.

2.CHECK DTC.

1) Turn the ignition switch to OFF.

2) Disconnect the MFD connector and reconnect it.

3) Turn the ignition switch to ON.

4) Read the DTC relating the MFD using the Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)">

Is DTC B2220 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2220 BREAK THE WIRE OF IGN">Go to Step 3.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2220 BREAK THE WIRE OF IGN">Go to Step 5.

3.CHECK FUSE.

1) Turn the ignition switch to OFF.

2) Check the fuse.

Is the fuse OK?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2220 BREAK THE WIRE OF IGN">Go to Step 4.

Replace the defective fuse.

4.CHECK HARNESS.

1) Disconnect the MFD connector.

2) Turn the ignition switch to ON.

3) Using the tester, measure the voltage between terminals.

Connector & terminal

(i122) No. 3 (+) — Chassis ground (–):

Is the voltage 8.5 — 16.5 V?

Replace the MFD. Multi-function Display (MFD)">

Repair the harness between MFD and fuse.

5.CHECK CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the MFD connector.

Is there poor contact of connector?

Repair or replace the poor contact of connector.

Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

NOTE:

In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

Dtc u1651 lost communication with meter (uart)

General description

Other materials:

Installation
ENTERTAINMENT > Data Communication ModuleINSTALLATION1. DATA COMMUNICATION MODULECAUTION:• After installing the center grille assembly, check that the air vent grille of the center grille assembly is inserted correctly into the air vent duct.• Before handling the airbag system compone ...

Headlight flasher
CAUTION Do not hold the lever in the flashing position for more than just a few seconds. To flash the headlights, pull the lever toward you and then release it. The high beam will stay on for as long as you hold the lever. The headlight flasher works even though the lighting switch is in ...

Hill start assist system
Ensure that the Hill start assist system operates properly under the following circumstances. 1. Stop the vehicle on an uphill grade by depressing the brake pedal (all models) and clutch pedal (MT models only), with the engine running. 2. Make sure that the vehicle does not move backward ...