Lan Communication System (Diagnostics): Other — Subaru Outback BR рестайлинг (2012-2014)

PROCEDURE

CAUTION

Subaru Select Monitor is required for reading DTC, performing diagnosis, reading current data, customizing and active test (compulsory drive). Remove foreign matter (dust, water, oil, etc.) from each control module connector during removal and installation. For model with immobilizer or model with keyless access, registration of immobilizer may be needed after the replacement of controller etc. For detailed procedure, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".

Note. To check harness for open or short circuits, shake the suspected trouble spot or connector. Check List for Interview Refer to CHECK LIST FOR INTERVIEW .

Step	Check	Yes	No
1 CHECK PRE-INSPECTION. Ask the customer when and how the trouble occurred using the interview check list. Refer to CHECK LIST FOR INTERVIEW .	Did you interview the customer?	Go to step 2 .	Interview the customer.
2 BASIC INSPECTION. Check components which might affect CAN communication problem. Refer to INSPECTION .	Is the component that might affect CAN communication problem normal?	Go to step 3 .	Repair or replace each component.
3 CHECK DTC. Start the engine and read all DTCs. NOTE: When the engine does not start, perform the diagnosis for the engine start malfunction. Refer to DIAGNOSTICS FOR ENGINE STARTING FAILURE (H4DO). Refer to DIAGNOSTICS FOR ENGINE STARTING FAILURE (H6DO). If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. Refer to COMMUNICATION FOR INITIALIZING IMPOSSIBLE . Record all DTCs and freeze frame data.	Is DTC regarding CAN communication displayed on Subaru Select Monitor?	Go to step 5 .	Go to step 4 .
4 PERFORM GENERAL DIAGNOSTICS. Inspect using the "General Diagnostic Table". Refer to GENERAL DIAGNOSTIC TABLE .	Is result of inspection OK?	LAN system is normal.	Go to step 5 .
5 PERFORM DIAGNOSIS. Correct the cause of trouble. Perform the Clear Memory Mode. Refer to OPERATION . Read the DTC. Refer to OPERATION .	Is DTC displayed on Subaru Select Monitor?	Repeat step 5 until DTC is not shown.	Finish the diagnosis.

NOTE
When the engine does not start, perform the diagnosis for the engine start malfunction. Refer to DIAGNOSTICS FOR ENGINE STARTING FAILURE (H4DO). Refer to DIAGNOSTICS FOR ENGINE STARTING FAILURE (H6DO). If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. Refer to COMMUNICATION FOR INITIALIZING IMPOSSIBLE .

CHECK

Inspect the following item about the vehicle's state.

Scheme 22

Scheme 22: DISPLAY STATUS OF FAILURE INFORMATION

Scheme 23

Scheme 23: DISPLAY STATUS IN THE COMBINATION METER

Scheme 24

Scheme 24: CONDITIONS UNDER WHICH TROUBLE OCCURS

SUPPLEMENTAL RESTRAINT SYSTEM "AIRBAG"

Airbag system wiring harness is routed near the body integrated unit and twisted pair line.

CAUTION

Do not use the electrical test equipment on all airbag system wiring harnesses and connectors. Be careful not to damage the airbag system wiring harness when servicing the body integrated unit and LAN system.

Scheme 25

Scheme 25: LAN SYSTEM

Scheme 26

Bus line of LAN system is twisted pair line. Be careful not to by-pass or partly unbind the twisted pair line.
Do not make clearance between bus lines (CAN High, CAN Low).
Difference of bus line length should be within 10 cm (3.94 in).
Fray near the connector should be within 8 cm (3.14 in).
If the characteristics of the twisted pair line are changed, it may extremely weaken against noise.
When repairing the harness, connect the wires using soldering and protect it with insulating tape etc.
When measuring the resistance of CAN communication circuit, measure it in sleep status. To enter sleep status With ignition switch OFF and key or switch operation stopped, keep the doors, trunk, and rear gate all closed for one minute or more. On models with keyless access function, keep the access key 2 m or more away from the vehicle.

GENERAL TOOL

TOOL NAME	REMARKS
Circuit tester	Used for measuring resistance, voltage and current.

Scheme 27

Scheme 27: LOCATION

BUS "A" (MAIN-CAN)

Note. When measuring the resistance of CAN communication circuit, measure it in sleep status. To enter sleep status With ignition switch OFF and key or switch operation stopped, keep the doors, trunk, and rear gate all closed for one minute or more. On models with keyless access function, keep the access key 2 m or more away from the vehicle.

BUS "B" (SMART SYSTEM CAN)

LIST

Bus "A" (MAIN-CAN) Resistance value between CAN Hi and Lo Contents of inspection Remarks Ground short inspection Refer to «GROUND SHORT INSPECTION (BUS "A" (MAIN-CAN))»(ref-565191-S09084795992013071000000) . Shorted to ground in the communication circuit or control module. Battery short inspection Refer to «BATTERY SHORT INSPECTION (BUS "A" (MAIN-CAN))»(ref-565191-S35016325012013071000000) . Shorted to battery power supply in the communication circuit or control module. 56 - 64 ohms Refer to «56 - 64 ohms»(ref-565191-S40948610012013071000000) . Combined resistance of end resistance does not have malfunction; short to ground or +B short of the CAN communication circuit is possible, however. 55 ohms or less Refer to «55 ohms OR LESS»(ref-565191-S41073572012013071000000) . Resistance is lower than combined resistance of end resistance. Short to CAN Hi and CAN Lo on the CAN communication circuit is possible. 65 ohms or more Refer to «65 ohms OR MORE»(ref-565191-S07908834452013071000000) . Resistance is higher than combined resistance of end resistance. Open circuit of CAN communication circuit is possible. 56 - 64 ohms (TCM) Refer to «56 - 64 ohms (TCM)»(ref-565191-S24805291852013071000000) . No TCM data is received. Perform inspection when faulty is detected. 56 - 64 ohms (Steering angle sensor) Refer to «RELATED LINES 56 - 64 ohms (STEERING ANGLE SENSOR)»(ref-565191-S33219607172013071000000) . Perform inspection, when communication failure of steering angle sensor is detected. 56 - 64 ohms (A/C CM) Refer to «56 - 64 ohms (A/C CM)»(ref-565191-S35534823772013071000000) . No A/C data is received. Perform inspection when faulty is detected. 56 - 64 ohms (Electronic parking CM) Refer to «56 - 64 ohms (ELECTRONIC PARKING CM)»(ref-565191-S22072341762013071000000) . No EPB data is received. Perform inspection when faulty is detected. 56 - 64 ohms (Stereo camera) Refer to «56 - 64 ohms (STEREO CAMERA)»(ref-565191-S13264406632013071000000) . No ACC data is received. Perform inspection when faulty is detected. 56 - 64 ohms (Combination meter) Refer to «56 - 64 ohms (COMBINATION METER)»(ref-565191-S22571225092013071000000) . No meter data is received. Perform inspection when faulty is detected. 56 - 64 ohms (Security CM) Refer to «56 - 64 ohms (SECURITY CM)»(ref-565191-S27422273382013071000000) . No security CM data is received. Perform inspection when faulty is detected. 56 - 64 ohms (Airbag) Refer to «56 - 64 ohms (AIRBAG)»(ref-565191-S41220018352013071000000) . Perform inspection, when communication failure of airbag system is detected. 56 - 64 ohms (Remote engine start) Refer to «56 - 64 ohms (REMOTE ENGINE START)»(ref-565191-S13231011312013071000000) . No other data is received. Perform inspection when faulty is not detected.
Bus "B" (Smart system CAN) Resistance value between CAN Hi and Lo Contents of inspection Remarks Ground short inspection Refer to «GROUND SHORT INSPECTION (BUS "B" (SMART SYSTEM CAN))»(ref-565191-S18961721052013071000000) . Shorted to ground in the communication circuit or control module. Battery short inspection Refer to «BATTERY SHORT INSPECTION (BUS "B" (SMART SYSTEM CAN))»(ref-565191-S27186242562013071000000) . Shorted to battery power supply in the communication circuit or control module. 57 - 63 ohms Refer to «57 - 63 ohms»(ref-565191-S40896699152013071000000) . Combined resistance of end resistance does not have malfunction; short to ground or +B short of the CAN communication circuit is possible, however. 56 ohms or less Refer to «56 ohms OR LESS»(ref-565191-S40352200342013071000000) . Resistance is lower than combined resistance of end resistance. Short to CAN Hi and CAN Lo on the CAN communication circuit is possible. 64 ohms or more Refer to «64 ohms OR MORE»(ref-565191-S17726747782013071000000) . Resistance is higher than combined resistance of end resistance. Open circuit of CAN communication circuit is possible. 57 - 63 ohms (Remote engine start) Refer to «57 - 63 ohms (REMOTE ENGINE START)»(ref-565191-S36318870482013071000000) . No other data is received. Perform inspection when faulty is not detected.

DTC	Item	Content of diagnosis	Note
None	Communication for Initializing Impossible	Subaru Select Monitor communication is open or shorted.	Refer to COMMUNICATION FOR INITIALIZING IMPOSSIBLE .
U1201	CAN-HS Counter Abnormal	High speed CAN communication error	Refer to DTC U1201 CAN-HS COUNTER ABNORMAL .
U1202	CAN-HS Bus Off	Communication of some module is shut down.	Refer to DTC U1202 CAN-HS BUS OFF .
U1211	CAN-HS ECM Data Abnormal	Error data is received from ECM.	Refer to DTC U1211 CAN-HS ECM DATA ABNORMAL .
U1212	CAN-HS TCM Data Abnormal	Error data is received from TCM.	Refer to DTC U1212 CAN-HS TCM DATA ABNORMAL .
U1213	CAN-HS VDC Data Abnormal	Error data is received from VDC module.	Refer to DTC U1213 CAN-HS VDC DATA ABNORMAL .
U121A	CAN-HS Meter Unit Data Abnormal	Error data is received from meter.	Refer to DTC U121A CAN-HS METER UNIT DATA ABNORMAL .
U121B	CAN-HS A/C Data Abnormal	Error data is received from A/C module.	Refer to DTC U121B CAN-HS A/C DATA ABNORMAL .
U121C	CAN-HS SCU Data Abnormal	Error data is received from SCU.	Refer to DTC U121C CAN-HS SCU DATA ABNORMAL .
U1219	CAN-HS EPB Data Abnormal	Error data is received from EPB module.	Refer to DTC U1219 CAN-HS EPB DATA ABNORMAL .
U1221	CAN-HS ECM No-Receive Data	Data does not arrive from ECM.	Refer to DTC U1221 CAN-HS ECM NO-RECEIVE DATA .
U1222	CAN-HS TCM No-Receive Data	Data does not arrive from TCM.	Refer to DTC U1222 CAN-HS TCM NO-RECEIVE DATA .
U1223	CAN-HS VDC No-Receive Data	Data does not arrive from VDC module.	Refer to DTC U1223 CAN-HS VDC NO-RECEIVE DATA .
U122A	CAN-HS Meter No-Receive Data	Data does not arrive from meter.	Refer to DTC U122A CAN-HS METER NO-RECEIVE DATA .
U122B	CAN-HS A/C No-Receive Data	Data does not arrive from A/C CM.	Refer to DTC U122B CAN-HS A/C NO-RECEIVE DATA .
U122C	CAN-HS SCU No-Receive Data	Data does not arrive from SCU.	Refer to DTC U122C CAN-HS SCU NO-RECEIVE DATA .
U1229	CAN-HS EPB No-Receive Data	Data does not arrive from EPB module.	Refer to DTC U1229 CAN-HS EPB NO-RECEIVE DATA .
U1301	CAN-LS Counter Abnormal (LS or KAC)	Communication is unstable because of KAC CAN communication error.	Refer to DTC U1301 CAN-LS COUNTER ABNORMAL .
U1302	CAN-LS Bus Off (LS or KAC)	Integrated unit communication is shut down because of KAC CAN communication error.	Refer to DTC U1302 CAN-LS BUS OFF .
U1328	Smart System CAN (KAC) Data No-Receive	Data does not arrive from keyless access CM.	Refer to DTC U1328 SMART SYSTEM CAN (KAC) DATA NO-RECEIVE .
U1601	LIN Communication (Seat Memory) Failure	Communication error with seat memory module occurred.	Refer to DTC U1601 LIN COMMUNICATION (SEAT MEMORY) FAILURE .
U0073	Control Module Communication Bus "A" Off	Communication of some module is shut down.	Refer to DTC U0073 CONTROL MODULE COMMUNICATION BUS "A" OFF .
U0401	Invalid Data Received From ECM/PCM "A"	Error data is received from ECM.	Refer to DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A" .
U0402	Invalid Data Received From TCM	Error data is received from TCM.	Refer to DTC U0402 INVALID DATA RECEIVED FROM TCM .
U0416	Invalid Data Received From Vehicle Dynamics Control Module	Error data is received from VDC module.	Refer to DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE .
U0422	Invalid Data Received From Body Control Module	Error data is received from body integrated unit.	Refer to DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE .
U0423	Invalid Data Received From Instrument Panel Cluster Control Module	Error data is received from meter.	Refer to DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE .
U1433	Invalid Data Received From EyeSight	Error data is received from stereo camera.	Refer to DTC U1433 INVALID DATA RECEIVED FROM EYESIGHT .
U0417	Invalid Data Received From Park Brake Control Module	Error data is received from electric parking CM.	Refer to DTC U0417 INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE .
U0100	Lost Communication With ECM/PCM "A"	Data does not arrive from ECM.	Refer to DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" .
U0101	Lost Communication With TCM	Data does not arrive from TCM.	Refer to DTC U0101 LOST COMMUNICATION WITH TCM .
U0122	Lost Communication With Vehicle Dynamics Control Module	Data does not arrive from VDC module.	Refer to DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE .
U0140	Lost Communication With Body Control Module	Data does not arrive from body integrated unit.	Refer to DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE .
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	Data does not arrive from meter.	Refer to DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE .
U1235	Lost Communication With EyeSight	Data does not arrive from stereo camera.	Refer to DTC U1235 LOST COMMUNICATION WITH EYESIGHT .
U0128	Lost Communication With Park Brake Control Module	Data does not arrive from electric parking.	Refer to DTC U0128 LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE .

Lan Communication System (Diagnostics): Other Subaru Outback BR рестайлинг