Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Backup Battery Internal Electronic Failure (B15CC49)
DESCRIPTION
This DTC is set when the DCM (telematics transceiver) detects one of the following:
- The mobilephone battery voltage drops or the mobilephone battery malfunctions.
- The mobilephone battery temperature is (temporarily) high.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15CC49 | Backup Battery Internal Electronic Failure | Mobilephone battery malfunction |
|
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Safety Connect System.
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PROCEDURE
| 1. | CHECK DTC |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and wait for 10 seconds or more.
(d) Turn the Techstream on.
(e) Clear the DTCs.
Body Electrical > Telematics > Clear DTCs(f) Check for DTCs and check that no DTCs are output.
Body Electrical > Telematics > Trouble Codes| OK | .gif) | USE SIMULATION METHOD TO CHECK |
|
| 2. | CHECK MOBILEPHONE BATTERY |
(a) Replace the mobilephone battery with a normal one and check if the same problem occurs again.
Click here
NOTICE:
The mobilephone battery must not be replaced while an ACN call is in progress.
Click here
(b) Clear the DTCs.
Body Electrical > Telematics > Clear DTCs(c) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Telematics > Trouble CodesOK:
No DTCs are output.
| OK | | PERFORM INITIALIZATION |
|
| 3. | REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver) with a new one.
Click here
NOTICE:
- The engine switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| NEXT | | PERFORM DCM ACTIVATION |
Telephone Main Antenna Circuit Short to Ground (B15CB11,B15CB13)
DESCRIPTION This DTC is stored when the DCM (telematics transceiver) detects an open or a short in the telephone antenna (main) circuit. DTC No. Detection Item DTC Detection Condition Trouble ...
Green Indicator Remains Off
DESCRIPTION After engine switch on (IG), the DCM (telematics transceiver) will enter into self check mode. The manual (SOS) switch red indicator will illuminate for 2 seconds and turn off followed by ...
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Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Airbag System: Data List / Active Test
DATA LIST / ACTIVE TEST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered be ...
Chevrolet Trax (2013-2022) Owner's Manual > Controls: Rear Window Wiper/ Washer
The rear wiper/washer controls are
on the end of the windshield wiper
lever.
ON: Press the upper portion of the
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
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- Instrument cluster
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
- General
- Audio & Visual & Telematics
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- Drivetrain
- Engine & Hybrid System
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- Suspension
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Chevrolet Trax (2013-2022) Owner's Manual
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