Subaru Crosstrek Service Manual: Dtc u1201 can-hs counter abnormal

DTC DETECTING CONDITION:

Communication is unstable because of high speed CAN communication error.

TROUBLE SYMPTOM:

• Display of combination meter indicates faulty.

• Control faulty may occur due to CAN communication error.

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 U1201 CAN-HS COUNTER ABNORMAL">Go to Step 2.

Perform the basic diagnostic procedure. Basic Diagnostic Procedure">

2.CHECK DTC.

1) Start the engine.

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

Is U0073 a current malfunction?

Perform the diagnosis of U0073. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U1201 CAN-HS COUNTER ABNORMAL">Go to Step 3.

3.CHECK DTC.

Check the displayed DTC.

Is U1201 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U1201 CAN-HS COUNTER ABNORMAL">Go to Step 4.

It is possible that temporary poor communication occurs. Perform the clear memory. Clear Memory Mode">

4.CHECK DTC.

1) Turn the ignition switch to ON.

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

Is U1201 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U1201 CAN-HS COUNTER ABNORMAL">Go to Step 5.

It is possible that temporary poor communication occurs. Perform the clear memory. Clear Memory Mode">

5.CHECK CONTROL MODULE.

1) Turn the ignition switch to OFF.

2) Disconnect the control modules other than body integrated unit in order.

NOTE:

When disconnecting ECM or VDC CM, connect resistance of 120 ? between CAN Hi and CAN Lo as an alternative of end resistance.

3) Turn the ignition switch to ON.

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

Is there any control module that U1201 is not detected as current malfunction?

Replace the control module.

Repeat 1) to 4) in step 5 until U1201 is not detected.

Dtc u1120 lost communication with autostart stop control module

Dtc u1235 lost communication with eyesight

Other materials:

Disassembly
BRAKE > Rear Disc Brake AssemblyDISASSEMBLYCAUTION:Be careful not to allow foreign matter to enter the brake hose connector.1. Remove mud and foreign matter from the caliper body assembly.2. Remove the piston boot from caliper body cylinder.3. Remove the piston - disc brake.(1) Place a wooden blo ...

Removal
SECURITY AND LOCKS > Keyless Access CMREMOVALCAUTION:Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">1. Disconnect the ground cable from battery and wait fo ...

Removal
EXTERIOR BODY PANELS > Rear GateREMOVALCAUTION:The panel - rear gate is heavy. When removing and installing it, always work in a team of two or more persons.1. REAR GATE PANEL1. Disconnect the ground cable from battery. NOTE">2. Remove the trim panel - rear gate. Rear Gate Trim > REM ...