Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Dtc b1012 battery backup power supply

BODY CONTROL SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC B1012 BATTERY BACKUP POWER SUPPLY

DTC detecting condition:

Voltage failure caused by poor contact of battery power supply backup circuits

Trouble symptom:

Illuminations for the keyless entry, map light, luggage light, trunk light, room light, and ignition switch do not turn on.

NOTE:

When B1011 BATTERY CONTROL POWER SUPPLY is output at the same time, all the function of body integrated unit may not operate.

Wiring diagram:

Immobilizer system Immobilizer System > WIRING DIAGRAM">

STEPCHECKYESNO

1.CHECK DTC.

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

Is B1012 current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1012 BATTERY BACKUP POWER SUPPLY">Go to Step 2.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1012 BATTERY BACKUP POWER SUPPLY">Go to Step 5.

2.CHECK DTC.

1) Turn the ignition switch to OFF.

2) Disconnect and then connect the body integrated unit connector.

3) Wait approx. 2 minutes.

4) Turn the ignition switch to ON.

5) Read the DTC of body integrated unit using Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)">

Is B1012 current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1012 BATTERY BACKUP POWER SUPPLY">Go to Step 3.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1012 BATTERY BACKUP POWER SUPPLY">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 B1012 BATTERY BACKUP POWER SUPPLY">Go to Step 4.

Replace the defective fuse.

4.CHECK HARNESS.

1) Disconnect the body integrated unit connector.

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

Connector & terminal

(B281) No. 7 (+) — Chassis ground (−):

Is the voltage 8.5 — 16.5 V?

Replace the body integrated unit. Body Integrated Unit">

Repair the harness between body integrated unit and fuse.

5.CHECK CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the body integrated unit 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 b1011 battery control power supply
BODY CONTROL SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B1011 BATTERY CONTROL POWER SUPPLYDTC detecting condition:• Voltage failure caused by poor conta ...

Dtc b1013 ignition power
BODY CONTROL SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B1013 IGNITION POWERDTC detecting condition:Voltage failure caused by poor contact of IGN power supply ...

Other materials:

Dtc u0155 lost communication with instrument panel cluster (ipc) control module
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULEDetected when CAN data from meter does not arrive.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > ...

Installation
CLUTCH SYSTEM > FlywheelINSTALLATION1. Press in a new pilot bearing to the position where it is flush with the flywheel surface or up to 0.4 mm (0.016 in) deeper than that.CAUTION:Do not press the bearing inner ring.(A)Pilot bearing2. Temporarily tighten the crankshaft position sensor plate and f ...

Shift lock release using the shift lock release button
Perform the following procedure to release the shift lock. 1. Apply the parking brake and turn the ignition switch to the "LOCK"/"OFF" position. 2. Wrap the tip of a flat-head screwdriver with vinyl tape or a cloth and use it to remove the shift lock cover. The shift lock release button ...

© 2016-2022 Copyright www.sucross.com