Alarm - Immobiliser - Remote Start
The DBALL module can interface with newer alarm systems designed for the DBALL data interface via a simple “D2D” Data to Data connection OR as in my case traditional “W2W” Wire to Wire connections. Because I mounted the DBALL module on top of the remote start unit, the W2W connections required are very short. Either D2D or W2W still require that same number of connections to the vehicle Starter, IGN1, ACC, IGNII, CAN BUS and Transponder lines. In the Honda Accord all but one of these wires are in the steering column loom and the low speed single wire can bus connection is very close by. This resulted in a very neat installation with virtually no indication of any additional wiring added. Seriously, you can’t tell that anything has been added; even a Honda service department wouldn’t pick it.
Some simple remote start interfaces tape or hide the Key Fob transponder from a spare key to the back of the steering column - This results in a crude, critically insecure and compromised security system - The DBALL module does not require a Key Fob transponder to be used to bypass the system. It simply requires a few installation steps to learn the bypass transponder code from the existing Honda system, from then on it supplies that code to the vehicle CPU when remote start is initiated from the key fob.
The biggest problem was figuring out the way everything works from the very limited information supplied. The DBALL module needs a GWR (ground while running) connection and the information on this is sketchy and contradictory in the returned Google search information. I also needed to invert one output and combine the trunk and engine compartment triggers from the DBALL module to the Alarm/Remote start module. I was able to invert that one signal inside the alarm module so everything remains neat.
I modified the remote start module to supply a GWR whenever it’s inbuilt IGN control relay is energized by the remote start command. The closest “apparently” correct description of GWR is that the signal is used to “enable” the DBALL module and if it’s not supplied (the GWR wire is just pulled low permanently) the DBALL module will cause the vehicle CAN-BUS system to stay powered up and therefore slowly drain the Battery.
I don’t think that is the entire storey as the DBALL responds to the Unlock/Lock and Alarm ARM/Disarm signals without this control line being low. To do that it HAS to talk to the CAN-BUS, therefore it can control the Can- Bus output without this signal AND it should be capable of running in a low power standby mode to do this.
I think the GWR line is used to tell the DBALL to send the “transponder code” to the CPU so that the CPU thinks that the IGN Key with its inbuilt Transponder has been inserted. I can’t see any other way that the DBALL would know when to send this data, and if that line is just tied low then the CAN-BUS and CPU would stay awake and slowly discharge the vehicle battery - it could also be a potential security breach.
Anyway, it all works. I now have auto locking of the doors after the vehicle has started and moving and auto unlock of the doors when the engine is turned off (a feature of the new alarm module). I have shock sensor and alarm status sent to the remote key fob along with various signals like Battery voltage, vehicle temperature, lock status, alarm entry alerts and lock reminder etc. Trunk release works and the remote start is perfect.
Some simple remote start interfaces tape or hide the Key Fob transponder from a spare key to the back of the steering column - This results in a crude, critically insecure and compromised security system - The DBALL module does not require a Key Fob transponder to be used to bypass the system. It simply requires a few installation steps to learn the bypass transponder code from the existing Honda system, from then on it supplies that code to the vehicle CPU when remote start is initiated from the key fob.
The biggest problem was figuring out the way everything works from the very limited information supplied. The DBALL module needs a GWR (ground while running) connection and the information on this is sketchy and contradictory in the returned Google search information. I also needed to invert one output and combine the trunk and engine compartment triggers from the DBALL module to the Alarm/Remote start module. I was able to invert that one signal inside the alarm module so everything remains neat.
I modified the remote start module to supply a GWR whenever it’s inbuilt IGN control relay is energized by the remote start command. The closest “apparently” correct description of GWR is that the signal is used to “enable” the DBALL module and if it’s not supplied (the GWR wire is just pulled low permanently) the DBALL module will cause the vehicle CAN-BUS system to stay powered up and therefore slowly drain the Battery.
I don’t think that is the entire storey as the DBALL responds to the Unlock/Lock and Alarm ARM/Disarm signals without this control line being low. To do that it HAS to talk to the CAN-BUS, therefore it can control the Can- Bus output without this signal AND it should be capable of running in a low power standby mode to do this.
I think the GWR line is used to tell the DBALL to send the “transponder code” to the CPU so that the CPU thinks that the IGN Key with its inbuilt Transponder has been inserted. I can’t see any other way that the DBALL would know when to send this data, and if that line is just tied low then the CAN-BUS and CPU would stay awake and slowly discharge the vehicle battery - it could also be a potential security breach.
Anyway, it all works. I now have auto locking of the doors after the vehicle has started and moving and auto unlock of the doors when the engine is turned off (a feature of the new alarm module). I have shock sensor and alarm status sent to the remote key fob along with various signals like Battery voltage, vehicle temperature, lock status, alarm entry alerts and lock reminder etc. Trunk release works and the remote start is perfect.
Basic block connections for the system
On impulse (because of the $25 sell out price) I purchased two “EUROLAB” SPY Super long range Two Way alarm systems with remote start. Each kit has two wireless LCD display key fobs, glass mount long range aerial, adjustable shock sensor, relays, siren etc.
The Accord has an inbuilt alarm/immobiliser but I wanted something to notify me of a problem when the vehicle was out of sight. I actually wasn’t interested in the remote start part of it. Due to the availability of a DBALL Can interface and bypass module at a low price I decided to try and interface this alarm and remote-start system to the Vehicle. (DBALL bought off eBay.)
The DEI Xpresskit DBALL module was pre-programmed for my Accord year and model and for those not familiar with this device:
It interfaces an aftermarket alarm and/or remote start module to the vehicle security system via the vehicle CAN-BUS. This allows the Key-Fob Transponder to be bypassed and the Vehicle security systems to be controlled and rearmed by a two-way remote control key fob supplied with the aftermarket module. The obvious benefit with a CAN-BUS interface is that no wiring is needed to the existing door switches, trunk, engine compartment, or existing alarm system. The Tach / RPM information is also supplied from the Can-Bus via the DB-ALL module for the remote start module.
In other words - The DBALL module takes the single wire CAN BUS input from the Accord G7 (2003 and up) and provides multiple outputs that indicate the status of various door switches, brake and hand brake switches, engine running (TACH output) etc. It also sends commands over the CAN-BUS in response to various inputs to lock/unlock the doors, boot, and disable or enable the security system.
The Accord has an inbuilt alarm/immobiliser but I wanted something to notify me of a problem when the vehicle was out of sight. I actually wasn’t interested in the remote start part of it. Due to the availability of a DBALL Can interface and bypass module at a low price I decided to try and interface this alarm and remote-start system to the Vehicle. (DBALL bought off eBay.)
The DEI Xpresskit DBALL module was pre-programmed for my Accord year and model and for those not familiar with this device:
It interfaces an aftermarket alarm and/or remote start module to the vehicle security system via the vehicle CAN-BUS. This allows the Key-Fob Transponder to be bypassed and the Vehicle security systems to be controlled and rearmed by a two-way remote control key fob supplied with the aftermarket module. The obvious benefit with a CAN-BUS interface is that no wiring is needed to the existing door switches, trunk, engine compartment, or existing alarm system. The Tach / RPM information is also supplied from the Can-Bus via the DB-ALL module for the remote start module.
In other words - The DBALL module takes the single wire CAN BUS input from the Accord G7 (2003 and up) and provides multiple outputs that indicate the status of various door switches, brake and hand brake switches, engine running (TACH output) etc. It also sends commands over the CAN-BUS in response to various inputs to lock/unlock the doors, boot, and disable or enable the security system.
