DTC B15EC: Backup Battery Degradation [08/2013 - ]: Procedure
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC
- Turn the power switch off.
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and wait for 10 seconds.
- Turn the Techstream on.
- Perform "Health Check" and check for current DTCs. Refer to HEALTH CHECK [08/2013 - ]
.
Result
Result Proceed to DTC B15EC is output. A DTC B15EC is not output. B
B → See step 2
A → See step 3
- CHECK FOR INTERMITTENT PROBLEMS. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]
- REPLACE BUB (BACK-UP BATTERY). Refer to REMOVAL [08/2013 - ]