Common Corsa D & Astra H Immobiliser Symptoms
Common Symptoms We Repair
- ✔ Flashing car and spanner warning light
- ✔ Vehicle won't start after a flat battery
- ✔ Immobiliser fault after battery replacement
- ✔ Engine cranks but won't start
- ✔ BCM and ECU out of synchronisation
- ✔ Key not recognised
- ✔ Remote key not synchronised
- ✔ Tech 2 security programming required
What Causes the Immobiliser Fault?
- Main two causes of immobiliser failure with spanner light flashing
- immobiliser issue after battery replacement
- immobiliser issue after charging up a flat battery
- cause of fault ?
- corruption of link between the modules to the bcm
The Engine Control Module is responsible for monitoring and controlling all major aspects of the engine – fuel, air, ignition.
The Instrument Cluster contains your speedometer, rev counter and dash warning lights.
The Airbag Module is a safety module controlling your airbags.
WHAT THE SPANNER WARNING LIGHT MEANS
The warning light on your Astra or Corsa lights up when the ignition is switched on, and should turn off within just a few seconds. If it stays on or lights up while the engine is running it indicates a fault within either the engine or the transmission management system, and could cause the power train to run in “emergency” or “limp home” mode.
OUR SOLUTION
Our advanced dealer-level diagnostic and programming equipment means we can reprogram and realign the immobiliser modules in your Vauxhall, at your address
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 Synchronised
- B3925 – Wrong Environment Identifier Received IPC (Instrument Cluster)
- B3929 – Wrong Environment Identifier Received SDM (Airbag)
- B3977 – Wrong Environment Identifier Received ECM (Engine Control Module)
SOLVED
This often happens when you’re trying to start your Vauxhall when it’s got a flat battery.
Fixing it requires Tech 2 Vauxhall diagnostics to reset and reprogramme the Body Control Module so it synchronises with all the other vehicle security modules.
We have genuine Tech 2 diagnostics, so we can fix these problems for you in no time at all - just like we’ve done for many other happy Vauxhall owners.
How do I fix the problem?
call us
Our Genuine 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 the vehicle need to go to a main dealership?
Absolutely not! We’re equipped with genuine Tech 2 Vauxhall diagnostic equipment, so we can solve this problem for you in no time at all – like we’ve already done for many happy Vauxhall owners before now.
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if you own opcom you can do this yourself,you will need the security code for the vehicle and our data sheet below
please email us at [email protected] to purchase your Datasheet at £10 you will then get a password to download your printable datasheet
What the BCM, ECU & Instrument Cluster Do
The Body Control Module is responsible for multiple functions on the vehicle – the immobiliser, remote central locking, windscreen wipers, headlights, indicators etc.
The Engine Control Module is responsible for monitoring and controlling all major aspects of the engine – fuel, air, ignition.
The Instrument Cluster contains your speedometer, rev counter and dash warning lights.
The Airbag Module is a safety module controlling your airbags.
The Engine Control Module is responsible for monitoring and controlling all major aspects of the engine – fuel, air, ignition.
The Instrument Cluster contains your speedometer, rev counter and dash warning lights.
The Airbag Module is a safety module controlling your airbags.
What the Spanner Warning Light Means
WHAT THE SPANNER WARNING LIGHT MEANS
The warning light on your Astra or Corsa lights up when the ignition is switched on, and should turn off within just a few seconds. If it stays on or lights up while the engine is running it indicates a fault within either the engine or the transmission management system, and could cause the power train to run in “emergency” or “limp home” mode.
The warning light on your Astra or Corsa lights up when the ignition is switched on, and should turn off within just a few seconds. If it stays on or lights up while the engine is running it indicates a fault within either the engine or the transmission management system, and could cause the power train to run in “emergency” or “limp home” mode.
Our Vauxhall Immobiliser Repair Solution
OUR SOLUTION
Our advanced dealer-level diagnostic and programming equipment means we can reprogram and realign the immobiliser modules in your Vauxhall, at your address
Our advanced dealer-level diagnostic and programming equipment means we can reprogram and realign the immobiliser modules in your Vauxhall, at your address
Common Immobiliser Fault Codes
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 Synchronised
- B3925 – Wrong Environment Identifier Received IPC (Instrument Cluster)
- B3929 – Wrong Environment Identifier Received SDM (Airbag)
- B3977 – Wrong Environment Identifier Received ECM (Engine Control Module)
Do You Need a Main Dealer?
Does the vehicle need to go to a main dealership?
Absolutely not! We’re equipped with genuine Tech 2 Vauxhall diagnostic equipment, so we can solve this problem for you in no time at all – like we’ve already done for many happy Vauxhall owners before now.
Absolutely not! We’re equipped with genuine Tech 2 Vauxhall diagnostic equipment, so we can solve this problem for you in no time at all – like we’ve already done for many happy Vauxhall owners before now.
How We Can Help
How do I fix the problem?
call us
Our Genuine 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.
call us
Our Genuine 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.
do the job yourself with opcom
Models manufactured between 2004 and 2010 — £100 + mileage


