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Mokka B1517 Problem
18-12-2018, 07:32 AM,
Post: #1
KOpel  Mokka B1517 Problem
Hi,

I have a Opel mokka 2015 1.6 CDTI with a single DTC B1517 5A, mayby can you help me?
This DTC doesn't affect the car functionality but check engine lamp is on.
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18-12-2018, 07:40 AM,
Post: #2
RE: Mokka B1517 Problem
DTC B1517 5A : Battery Voltage Plausibility Failure
The battery voltage differs by 2 volts on the BCM battery sense circuits for 10 seconds.
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18-12-2018, 08:19 AM,
Post: #3
RE: Mokka B1517 Problem
(18-12-2018, 07:40 AM)xander20005 Wrote:  DTC B1517 5A : Battery Voltage Plausibility Failure
The battery voltage differs by 2 volts on the BCM battery sense circuits for 10 seconds.

Mayby you know how to fix it?
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18-12-2018, 09:08 AM,
Post: #4
RE: Mokka B1517 Problem
bring the car and I fix. smile
check the battery, generator, ground...
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08-04-2019, 09:19 AM,
Post: #5
RE: Mokka B1517 Problem
Any progress on this issue? Have a similar case here.
I tried measuring ground and supply from bcm - all good,
bcm show battery voltage same as on battery terminals,
after 10 seconds B1517 5A is flagged.
Battery sensor has B+ and LIN to BCM connection ok.

Only thing that I have discovered is that in ECU data show malfunction state for generator
low voltage test result.
As found on some repair documents, measured resistance between generator L-terminal and ground is ~300ohm opposed to suggested infinite resistance.
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