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Vauxhall Corsa D – Car Won’t Start After Flat Battery – Immobilised – P1632 / P1678 / P1679 / B3114 / B3925 / B3929 / B3977

Vauxhall Corsa D – Car Won’t Start After Flat Battery – Immobilised – P1632 / P1678 / P1679 / B3114 / B3925 / B3929 / B3977

Vauxhall Corsa D – Car Won’t Start After Flat Battery – Immobilised – P1632 / P1678 / P1679 / B3114 / B3925 / B3929 / B3977

 

NOTE 1: Please check our  ‘areas covered’ page to see if you fall within our catchment area. We do not travel outside of this set area. Customers outside this area must arrange recovery to Westerham, Kent if they would like us to fix their vehicle.

NOTE 2: The only vehicle affected by the below issue is the Corsa D. No other vehicle in the Vauxhall range is affected. 

The Vauxhall Corsa D was made between 2006 and 2014, the problem I’m about to describe usually only affects the vehicles made in the earlier years of this time period (up to around 2009).

What are the symptoms of this fault?

The car will not start. You will also notice a flashing light on the dash – a car with a spanner through the centre (see picture below).

20-spanner

The car will also store some or all of the following fault codes:

P1632 – Wrong Transponder Key
P1678 – ECM (Engine Control Module) Identification Failed
P1679 – Wrong Environment Identifier Received BCM (Body Control Module)
B3114 – Remote Key Not Synchronized
B3925 – Wrong Environment Identifier Received IPC (Instrument Cluster)
B3929 – Wrong Environment Identifier Received SDM (Airbag)
B3977 – Wrong Environment Identifier Received ECM (Engine Control Module)

When does the fault occur?

This fault occurs when attempting to start the vehicle with a flat battery.

What does the fault mean?

When attempting to start the vehicle with a flat battery the BCM (Body Control Module) has insufficient power to perform it’s functions and the data held on this module corrupts. Now, with the data corrupted, it can no longer communicate correctly with the other modules in the car – it see’s the BCM as an ‘unmatched part’ and considers this a security risk – the vehicle is now immobilsed.

BCM – The Body Control Module is responsible for multiple functions on the vehicle  – immobiliser, remote central locking, windscreen wipers, headlights, indicators etc…

ECM – The Engine Control Module is responsible for monitoring and controlling all major aspects of your engine – fuel, air, ignition etc…

IPC – The Instrument Cluster contains your speedometer, rev counter and dash warning lights (the part behind your steering wheel).

SDM – The Airbag Module is a safety module controlling your airbags.

How do I fix the problem?

Genuine Tech 2 Vauxhall diagnostics are needed to fix this issue. The BCM (Body Control Module) must be reset and reprogrammed to match the other security modules within the vehicle.

Does my car need to go to the main dealers?

No! We have genuine Tech 2 diagnostics and can fix this problem for you in no time at all. We have fixed this common problem many times already.

How much does it cost?

We charge a flat rate of £120 for this service (see areas covered page). No hidden costs. Please feel free to give us a ring!

11 thoughts on “Vauxhall Corsa D – Car Won’t Start After Flat Battery – Immobilised – P1632 / P1678 / P1679 / B3114 / B3925 / B3929 / B3977

    1. Autolox Post author

      Hi Ali. Please check our ‘areas covered’ page to see if we cover your location. If you are in our area then we will happily fix your issue – just give us a call to book an appointment. Many thanks, Autolox.

  1. Rafael

    Hi there… I live in bournemouth, i know i’m outside of your work area but do you know or recommend someone who can do it? As im having exacly the same codes as you state and the car won’t enen crank over

  2. Shaun

    Hi I have this problem too with my Vauxhall Corsa 1.4 SXI 2008, my central locking, lights, wipers etc still work, it just won’t turn over.. I have had new battery fitted.. Same problem, I did try start the car on flat battery and the flashing spanner light comes up, would this be the BCM?

  3. Shaun

    Okay thanks I just wasn’t sure as it says the BCM is responsible for locks, wipers etc.. Taking it to a place tommorow hopefully won’t have to go to Vauxhall, any idea how much the dealer would charge? Many thanks

    1. Autolox Post author

      You are correct in thinking the BCM is responsible for those other features – although they are not affected by the issue described. Vauxhall SHOULD charge around £150 although I have had reports of them charging extortionate amounts to ‘diagnose the issue’.

  4. Shaun

    That was the problem, all sorted now I did need my Vauxhall car pass code details which Vauxhall asked for £35 and could take 2 days to receive, I got them through an online supplier for £25 within a few hours!

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