Subaru Crosstrek Service Manual: Dtc b2a07 backup battery charge system performance
TELEMATICS SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B2A07 BACKUP BATTERY CHARGE SYSTEM PERFORMANCE
DIAGNOSIS START CONDITION:
When ignition switch is ON.
DTC DETECTING CONDITION:
Backup battery is disconnected for at least 5 seconds when the ignition switch is turned ON. (Detached backup battery connection, etc.)
TROUBLE SYMPTOM:
• ACN/SOS function cannot be used when the main battery is disconnected.
• RED LED illuminates.
CAUTION:
CommCheck is required after replacing the DCM. Telematics System > OPERATION">
| STEP | CHECK | YES | NO |
1.CHECK DTC.
Read the DTC. Diagnostic Code(s) Display">
Is DTC B2A07 displayed? (Current malfunction)
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2A07 BACKUP BATTERY CHARGE SYSTEM PERFORMANCE">Go to Step 2.
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.
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2.CHECK BACKUP BATTERY.
1) Remove the DCM. Data Communication Module">
2) Remove the backup battery cover.
3) Disconnect the backup battery connector.
4) Measure the backup battery voltage.
Is the voltage 2.0 V or more?
Replace the DCM. Data Communication Module">
Replace the backup battery. Data Communication Module">
Dtc u0151 lost communication with restraints control module
TELEMATICS SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0151 LOST COMMUNICATION WITH RESTRAINTS CONTROL MODULEDetected when CAN data is not received from airba ...
Dtc b2a10 battery voltage high
TELEMATICS SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B2A10 BATTERY VOLTAGE HIGHDiagnosis start condition:When ignition switch is ON.DTC detecting condition:D ...
Other materials:
System operation
Operating conditions
The BSD/RCTA will operate when all of
the following conditions are met.
The ignition switch is in the "ON"
position.
The BSD/RCTA warning indicator and
BSD/RCTA OFF indicator are turned off.
The vehicle is driven at speeds above
6 mph (10 km/h) (except when rever ...
Removal
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Tumble Generator Valve AssemblyREMOVAL1. Release the fuel pressure. Fuel > PROCEDURE">2. Disconnect the ground cable from battery.3. Remove the intake manifold. Intake Manifold > REMOVAL">4. Disconnect the connector (A) from the tumble ...
Adjustment
LIGHTING SYSTEM > Headlight AssemblyADJUSTMENT1. HEADLIGHT BEAM ADJUSTMENTCAUTION:• Turn off the light before adjusting the beam level of the light assembly - head. If it is necessary to inspect the beam level, do not keep the light on for two minutes or more.• When blocking the light ...
