Subaru Crosstrek Service Manual: Dtc u0422 invalid data received from body control module

DTC DETECTING CONDITION:

Defective data was transmitted from body integrated unit.

TROUBLE SYMPTOM:

Cooperation control with body integrated unit does not operate properly.

1.CHECK PERFORMING OF BASIC DIAGNOSTIC PROCEDURE.

Was the basic diagnostic procedure performed up to STEP 3?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 2.

Perform the basic diagnostic procedure. Basic Diagnostic Procedure">

2.CHECK DTC.

Check the displayed DTC.

Are DTCs other than U*** displayed?

Perform the diagnosis according to DTC.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 3.

3.CHECK DTC.

Check the displayed DTC.

Is DTC for the bus off or the data no-receive displayed?

Perform the diagnosis according to DTC.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 4.

4.CHECK DTC.

Check the displayed DTC.

Is U0422 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 5.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 9.

5.CHECK DTC.

1) Turn the ignition switch to OFF.

2) Disconnect the body integrated unit connector.

3) Connect the disconnected connectors.

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

Is U0422 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 6.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 9.

6.CHECK DTC.

Using the Subaru Select Monitor, read DTC of all the systems. Read Diagnostic Trouble Code (DTC)">

Is the body integrated data abnormal detected in several modules?

Replace the body integrated unit. Body Integrated Unit">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 7.

7.REPLACE MODULE.

1) Replace the body integrated unit.

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

Is U0422 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 8.

System is normal.

8.CHECK MODULE.

1) Reinstall the body integrated unit.

2) Replace the module that the DTC has been detected.

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

Is U0422 a current malfunction?

Replace the body integrated unit. Body Integrated Unit">

System is normal.

9.CHECK HARNESS.

1) Shake the harness, and check for poor contact.

2) Using the Subaru Select Monitor, read DTC of CAN system. Read Diagnostic Trouble Code (DTC)">

Is U0422 a current malfunction?

Repair the poor contact of harness, or replace the harness.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE">Go to Step 10.

10.CHECK CONNECTOR.

Check the connector used for high speed CAN for poor contact.

Is there poor contact of connector?

Repair the connector that has poor contact, or replace harness.

It is possible that temporary poor communication occurs. Delete the DTC.

Dtc u0420 invalid data received from power steering control module

Dtc u0423 invalid data received from instrument panel cluster control module

Other materials:

Sliding moonroof
Open Close To open: Press and hold the rear side of the "OPEN/CLOSE" switch. The sun shade will also be opened together with the moonroof. The moonroof will stop at a position approximately 1.6 in (4 cm) away from the fully opened position. Press and hold the rear side of the swit ...

Installation
CLUTCH SYSTEM > Clutch SwitchINSTALLATION1. CLUTCH SWITCH1. Install the clutch switch.2. Move the clevis pin of push rod to left and right, retain it at the position where it moves smoothly, and measure the clutch pedal stroke.Clutch pedal full stroke A:130 — 135 mm (5.12 — 5.31 in)Tightening ...

Dtc p0751 shift solenoid "a" performance/stuck off
CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0751 SHIFT SOLENOID "A" PERFORMANCE/STUCK OFFDTC detecting condition:Detected when two consecutive driving cycles with fault occur.Trouble symptom:• Shift control malfunc ...