Lan Communication System - Lan System (Diagnostics): Diagnosis Subaru Outback BP рестайлинг

INSPECTION

Before performing diagnostics, check the following item which might affect body integrated unit malfunctions.

1. Measure the battery voltage and check electrolyte. Standard voltage: 12 V or more Specific gravity: Above 1.260
2. Check the fuse condition. Make sure that ampere of the fuse is setting value, and it is not blown out. While doing this, also check the backup fuse condition.
3. Check the connecting condition of harness and harness connector.
4. Confirm that a setting that does not match the vehicle equipment, is not set in the body integrated unit. < Ref. to «REGISTRATION BODY INTEGRATED UNIT (EQUIPMENT SETTING)»(ref-306917-S35571079782008122600000) , OPERATION, Subaru Select Monitor . >
5. Make sure that a setting that does not match the vehicle equipment, is not set in the function setting (ECM customizing) of the body integrated unit. < Ref. to «FUNCTION SETTING (ECM CUSTOMIZING)»(ref-306917-S31926890482008122600000) , OPERATION, Subaru Select Monitor . >
6. Confirm "Factory initial setting" of body integrated unit registrations is "Market".
7. Confirm key illumination does not blink with ignition switch turned to ON.

READ DIAGNOSTIC TROUBLE CODE (DTC)

Note. DTC is displayed in the sequence of inputting. (When entering two DTCs or more simultaneously, they are displayed in the sequence of priority.) When more than two DTCs are displayed, perform the diagnosis of top one.

Scheme 8

1. Prepare the Subaru Select Monitor kit.
2. Connect the diagnosis cable to the Subaru Select Monitor.
3. Connect the Subaru Select Monitor to the data link connector. Data link connector is located in the lower portion of instrument panel (on the driver's side). CAUTION: Do not connect the scan tools except for Subaru Select Monitor.
4. Turn the ignition switch to ON (engine OFF) and run the Subaru Select Monitor.
5. On the «Main Menu» display screen, select the {Each System Check}.
6. On the «System Selection Menu» display screen, select the {Integ. Unit mode}.
7. On the «Integ. Unit mode» display screen, select the {Diagnostic Code(s) Display}. NOTE: For details concerning the operation procedure, refer to the "SUBARU SELECT MONITOR OPERATION MANUAL". For details concerning DTCs, refer to the List of Diagnostic Trouble Code (DTC). < Ref. to «LIST OF DIAGNOSTIC TROUBLE CODE (DTC)»(ref-306917-S08109006522008122600000) . >

DTC TABLE

Note. When more than two DTC codes are recorded, referring to their combination will make it easy to identify the possible cause. Refer to the list for typical examples.

DTC CHART

DIAGNOSIS

Subaru Select Monitor communication line is open or shorted.

TROUBLE SYMPTOM

Not communicable with Subaru Select Monitor.

Scheme 9

DIAGNOSIS PROCEDURE

Defective combination meter

1. Communication error display in odo/trip meter is not cleared. (Except for meter with MID)
2. "No trouble code" is displayed on Subaru Select Monitor.

Note. If DTC is not displayed on Subaru Select Monitor, LAN communication System should be OK.

DIAGNOSIS PROCEDURE

DTC DETECTING CONDITION

System error in body integrated unit

1. Check light comes on in the combination meter, and displays communication error display "Er IU". (Except for meter with MID)
2. LAN communication immobilizer function may not be executed normally.

DIAGNOSIS PROCEDURE

Battery power supply control circuit is open or shorted.

No malfunction occurs because the back-up power supply is activated.

Note. When B1102 BATT p/supply malfunction cont is output at the same time, all the function of body integrated unit may not operate.

Scheme 10

DIAGNOSIS PROCEDURE

Battery power supply backup circuit is open or shorted.

1. Engine malfunction indicator light may illuminates.
2. Keyless entry, room light and key illumination do not operate.
3. "En IU" may display in combination meter. (Except for meter with MID)

Note. When B1101 BATT p/supply malfunction cont is output at the same time, all function of body integrated unit may not function.

IGN power supply circuit is open or shorted.

Symptoms such as illuminating the malfunction indicator light or high speed CAN error display "Er HC" may occur. (Except for meter with MID)

Scheme 11

DIAGNOSIS PROCEDURE

ACC power supply circuit is open or shorted.

Rear wiper may not operate at ACC position.

Key interlock circuit is shorted to ground.

1. There is no key interlock power supply.
2. Key interlock does not release or does not keep lock condition.

Scheme 12

DIAGNOSIS PROCEDURE

Shift lock circuit is shorted to ground.

Shift lock does not be released or remain locked.

Scheme 13

DIAGNOSIS PROCEDURE

High speed CAN communication of body integrated unit which monitor the error data and non-received data are faulty.

1. "Er HC" is displayed in odo/trip meter. (Except for meter with MID)
2. Malfunction indicator light illuminates.

Scheme 14

Scheme 15

1. VDC model
2. ABS model

DIAGNOSIS PROCEDURE

1. Find the unit or CAN line in which trouble occurs, and repair and replace it.
2. Not received data and error data may be detected at the same time.

"Er HC" is displayed in odo/trip meter. (Except for meter with MID)

Defective data from ECM.

"Er HC" or "Er EG" is displayed in odo/trip meter. (Except for meter with MID)

Scheme 16

DIAGNOSIS PROCEDURE

TCM has error, harness between the main harness splice and TCM is open or shorted, connectors are not connected securely, or the terminal has poor crimping.

1. SPORT indicator light blinks.
2. "Er HC" or "Er tC" is displayed in odo/trip meter. (Except for meter with MID)

Scheme 17

DIAGNOSIS PROCEDURE

VDC/ABSCM itself is malfunctioning, the main harness is open or shorted, the connector is not connected properly, or the terminal is crimped poorly.

1. ABS warning light and VDC warning light illuminates.
2. "Er HC" or "Er Ab" is displayed in odo/trip meter. (Except for meter with MID)

Scheme 18

DIAGNOSIS PROCEDURE

Defective ECM. (If error is in the main harness, DTC P0600 CAN communication link is input simultaneously.)

1. Malfunction indicator light illuminates.
2. "Er HC" is displayed in odo/trip meter. (Except for meter with MID)

Scheme 19

DIAGNOSIS PROCEDURE

TCM has error, harness between the main harness splice and TCM is open or shorted, connectors are not connected securely, or the terminal has poor crimping.

1. Malfunction indicator light illuminates.
2. "Er HC" is displayed in odo/trip meter. (Except for meter with MID)

Scheme 20

DIAGNOSIS PROCEDURE

Defective VDC/ABSCM. (If error is in the main harness, DTC P0600 High-speed CAN circuit is input at the same time.)

1. ABS warning light and VDC warning light illuminates.
2. "Er HC" is displayed in odo/trip meter. (Except for meter with MID)

Either end of low-speed CAN communication line is open or shorted, the connector is not connected properly, or the terminal has poor crimping.

"Er LC" is displayed in odo/trip meter (except for meters with MID), but communicating function is normal.

Scheme 21

DIAGNOSIS PROCEDURE

Find the unit in which trouble occurs and open or short CAN line, and repair and replace them.

(Free running counter error may be detected at the same time from the unit in which the malfunction occurs.)

"Er LC" is displayed in odo/trip meter. (Except for meter with MID)

1. Because of a lot of error data occurred, some units have been disconnected not to affect other units.
2. Communication failure from the unit in which error is occurred is input at the same time.

"Er LC" is displayed in odo/trip meter. (Except for meter with MID)

Combination meter has error, the harness between main harness splice and combination meter is open or shorted, the connector is not connected properly, or the terminal has poor crimping.

"Er Lc" is displayed in odo/trip meter. (Except for meter with MID)

Center display unit error, or harness between the main harness splice and center display unit is open or shorted, the connector is not connected securely and the terminal has poor crimping.

"Er LC" is displayed in odo/trip meter. (Except for meter with MID)

Combination meter unit error, or harness between the main harness splice and combination meter unit is open or shorted, the connector is not connected properly and the terminal has poor crimping.

Fail mode occurs because the data is not received from combination meter unit.

UART between keyless control unit and body integrated unit is open or shorted, the connector is not connected properly, or the terminal is crimped improperly.

Door lock does not operate with keyless.

Scheme 22

DIAGNOSIS PROCEDURE

Read the DTC or inspect and diagnose the following data in the current data display using Subaru Select Monitor.

ITEM OPERATION CHART