PulseStop
For safer towing – PulseStop tells the vehicle that a trailer is connected enabling the activation of essential safe towing features and stops the trailer LEDs from blinking:
Trailer LEDs – stops the park and turn signal LEDs on the trailer from continuously blinking.
Air Suspension – the automatic changes to ride height are disabled at highway speeds to reduce the possibility of directional instability in the vehicle/trailer combination.
Anti-Lock Brake, Stability and Traction Control – different strategies can be applied to control the dynamics of the vehicle/trailer combination when in motion.
Power Train Control – can adjust engine fuelling, throttle response, automatic transmission shift points and enhance dynamic engine braking for the vehicle/trailer combination.
Body Control computer – enables the operation of the trailer telltale in the Instrument Cluster (a legal requirement in many jurisdictions). The rear fog and reversing lights on the vehicle are disabled to eliminate the reflected glare from the trailers front surfaces and for obvious reasons the rear parking sensors are disabled.
Note: the above functions are not available in all vehicles.
 Stop-S-B In-Line |
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 Stop-S-C Trailer Mounted |
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* Audi, BMW X5 & X3, FORD Mondeo, Mercedes Vito & Sprinter, Range Rover, Freelander 2, V W Touareg, Toyota etc.
Please contact me for Mercedes ML and GL
Fitting Instructions for PulseStop-S-B
The PulseStop-S series is designed for the Range Rover, Freelander 2, BMW, Mercedes, VW, Audi and other vehicles to stop the trailer’s park and turn signal LEDs from blinking and provide the vehicle with trailer recognition.
Because trailer connectors vary greatly around the world the B version of PulseStop has a 7-core cable with bare ends. This is so that you can use the connectors that are available in your country to make it into an in-line adaptor. There is also the option of supply with the three most common Australian connector combinations.
Each PulseStop is sealed during manufacture to prevent liquid and dust entry. As an extra precaution the external ends of the outer sheath on the 7-core cable should also be sealed. Apply a small amount of silicone sealant using a small screwdriver (or similar tool). Fan out the wires and push the silicone sealant into the open end of the outer sheath, around and in between the individual wires. Move the wires into position for fitting to your chosen connector, redistribute the sealant if required and allow the sealant to set. When the sealant has set fit the connector and recheck the seal, add more sealant if required.
Carefully read the instructions all the way through. Gather the tools and materials that you will need to complete the installation before you proceed. Refer to the ‘You will need’ list. If you feel that you are unable to perform any of the operations please seek the help of someone that can.
The labels on PulseStop are marked VEHICLE on one end and TRAILER on the other. The plug that fits into the socket on your vehicle goes on the cable from the VEHICLE end and the socket that fits the plug on your trailer goes on the cable from the TRAILER end.
PulseStop is internally connected to the trailer’s LEDs using the yellow (left turn), green (right turn), red (brake light), brown (park light) and white (earth) wires.
Many connectors have indicated uses for individual wire colours. When there is a conflict with the wire colour/uses above, please follow their suggestions for use, as it will make troubleshooting any faults at a later time easier. If you do not need all 7 wires you may leave the unused wires disconnected.
The blue and black wires go straight through from one end to the other and can be used for any purpose (each wire is rated at 10amps continuous).
When the connectors have been fitted to both ends and before the covers are fitted check that the external ends of the outer sheath on the 7-core cable are still properly sealed. If they require re-sealing add more silicone sealant.
When the plug and socket have been fitted to your PulseStop connect it between your vehicle and trailer to test the operation of the park and turn indicator LEDs. With the ignition switched on the trailer LEDS will have stopped blinking and the trailer telltale in the instrument cluster will now illuminate with the operation of the turn and hazard signals which means that your vehicle is recognising that the trailer is connected.
Operational notes
Always connect and disconnect the trailer with the vehicle ignition and lights switched off. Connecting or disconnecting the trailer with the vehicle’s ignition and/or lights switched on can indicate malfunctions by some of the vehicle systems.
You will need a PulseStop-S-B and:
- A plug to fit the socket on your vehicle
- A socket to fit the plug on your trailer cable
- Silicone sealant
- You will also need various hand tools – Side cutters, wire stripper, screwdrivers, needle nosed pliers.
It is strongly recommended that you regularly check the assembly for possible liquid entry points (nicks, cuts, abrasions, etc.) and seal any openings with silicone sealant to prevent liquid ingress as any liquid entry into a connector would eventually work its way along the inside of the cable and so corrode the wires and PulseStop electronics from the inside.
The PulseStop-S does not monitor the trailer LEDs and is therefore unable to inform the driver if a fault is present. The onus is always on the driver to check that all of the vehicle and trailer lighting is functioning correctly.
PulseStops do get very WARM when the turn signals and/or the brakes have been in use and it can even get quite HOT when the hazards have been in operation. This is normal and for that reason only high temperature/long life components are used in their manufacture.
PulseStop is warranted against defects in parts and manufacture for two years from purchase. It is not warranted against internal or external corrosion or any damage caused by liquid or dust ingress.
Schematic for PulseStop-S-C connection
Range Rover, Freelander 2 and other vehicles
Land Rover 7-pin Trailer Socket Wiring
The 7-pin round socket with White Cover is designated 12-S |
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| Mating White Plugs are available from Land Rover dealers Part number – RAA927 |
Pin #1 – Reverse lamp Pin #4 – Battery + Pin #6 – Ignition On + Pins # 3 & 7 - Ground |
The 7-pin round socket with the Black Cover is designated 12-N
Mating Black Plugs are available locally in your auto parts stores.
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Australian wire colours
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Pin # |
European wire colours
|
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| Left hand turn | Yellow | 1 | Yellow | Left hand turn |
| Reverse lamp | Black | 2 | Black | Fog lamp |
| Ground | White | 3 | White | Ground |
| Right hand turn | Green | 4 | Green | Right hand turn |
| Service Brakes (trailer) | Blue | 5 | Blue | Right hand tail lamp |
| Stop lamps | Red | 6 | Red | Stop lamps |
| Tail lamps | Brown | 7 | Brown | Left hand tail lamp |
NOTE: inside the vehicle European manufacturers use European wire colours these colours are not the same as the Australian Standard.
European regulations E/ECE/324 – E/ECE/TRANS/505 stipulate two separate tail lighting circuits. The Australian standard has only one tail lighting circuit on terminal #7 therefore your vehicle’s wiring may need to be modified. This is usually done inside the vehicle by connecting the Brown and Black wires together after cutting off and isolating the Brown wire going to pin #5 of the trailer socket.
NOTE: this does not appear to work on the Mercedes ML and GL. A new unit is being considered for the Mercedes.
The Brown wire to pin #5 may be then used for electric trailer brakes.
The Blue wire to pin #2 may be cut off and isolated from the vehicle wiring and rewired for battery + or ignition + power to the trailer.
Fitting Instructions for PulseStop-S-C
The PulseStop-S series is designed for the Range Rover, Freelander 2, BMW, Mercedes, VW, Audi and other European vehicles to stop the trailer’s park and turn signal LEDs from blinking and provide your vehicle with trailer recognition.
Each PulseStop is sealed during manufacture to prevent liquid and dust entry. The C version has a factory fitted 1 meter long 5-core cable so that it can be mounted on your trailer and wired into the trailer’s lighting cable.
Select a location to mount the PulseStop that is within 1 meter of the wiring for the trailer lighting. You are looking for somewhere preferably high and dry with adequate ventilation to cool a heated PulseBusta. (Do not restrict ventilation to any of the sides of the case nor mount it on plastic or any other heat sensitive materials)
Carefully read the instructions all the way through. Gather the tools and materials that you will need to complete the installation before you proceed. Refer to the ‘You will need’ list. If you feel that you are unable to perform any of the above operations please seek the help of someone that can.
Disconnect the trailer from the vehicle and isolate any power sources in the trailer.
PulseStop is connected to the trailer’s LEDs using the yellow (left turn), green (right turn), red (brake light), brown (park light) and white (earth) wires. Mount the PulseStop in the selected location using your chosen fixing method and run the attached 5-core cable to the position you have chosen to connect into the trailer wiring. At the connection point remove, from the trailer lighting cable, the minimum amount of outer sheath that is required to make the connections. Identify the EARTH wire in the trailer cable. Remove the minimum amount of insulation from the white EARTH wire from the PulseStop and the EARTH wire in the trailer cable. Solder the two wires together.
Remove the minimum amount of insulation from the remaining four PulseStop wires. Identify the left and right turn signal wires in the trailer cable. Remove the minimum amount of insulation from the left turn signal wire in the trailer cable. Solder that wire to the yellow wire going to the PulseStop. Remove the minimum amount of insulation from the right turn signal wire in the trailer cable. Solder that wire to the green wire going to the PulseStop. Identify the brake and park light wires in the trailer cable. Remove the minimum amount of insulation from the brake light wire in the trailer cable. Solder that wire to the red wire going to the PulseStop. Remove the minimum amount of insulation from the park light wire in the trailer cable. Solder that wire to the brown wire going to the PulseStop. Move the soldered connections apart and into a position where they do not contact each other or the trailer frame.
Testing the operation of the turn indicator LEDs.
Reconnect any power sources in the trailer and connect the trailer to the vehicle. With the ignition switched on the trailer LEDs will have stopped blinking and the trailer telltale in the instrument cluster will now illuminate with the operation of the turn and hazard signals which means that your vehicle is recognising that the trailer is connected. When all is working correctly separately insulate the 5 solder connections.
Operational notes
Always connect and disconnect the trailer with the vehicle ignition and lights switched off. Connecting or disconnecting the trailer with the vehicle’s ignition and/or lights switched on can indicate malfunctions by some of the vehicle systems.
Insulate and seal (weatherproof/waterproof) the join.
It is strongly recommended that you apply a small amount of silicone sealant to all three of the open ends of the cable sheaths at the join. Push the sealant into the ends around the wires using a small screwdriver (or similar tool) to prevent liquid entry into the PulseStop case through the inside of the cable. It is recommended that an outer seal of liquid electrical tape, self-amalgamating tape or heatshrink tape be placed over the three way join to completely weatherproof/waterproof the joins. Securely attach the cable to the trailer.
You will need a PulseBusta-S-C and:
- Various hand and power tools
- Fixings to mount the PulseBusta – self-taping screws, screws, nuts & washers, ‘pop’ rivets.
- Fixings for attaching the cable to the trailer
- Soldering iron and solder
- Electrical insulating tape
- Water proofing materials – silicone sealant, heatshrink and/or self-amalgamating tape, liquid electrical tape, etc.
It is strongly recommended that you regularly check the assembly for possible liquid entry points (nicks, cuts, abrasions, etc.) and seal any openings with silicone sealant to prevent liquid ingress as any liquid entry into a connector would eventually work its way along the inside of the cable and so corrode the wires and PulseStop electronics from the inside.
The PulseStop-S does not monitor the trailer LEDs and is therefore unable to inform the driver if a fault is present. The onus is always on the driver to check that all of the vehicle and trailer lighting is functioning correctly.
PulseStops do get very WARM when the turn signals and/or the brakes have been in use and it can even get quite HOT when the hazards have been in operation. This is normal and for that reason only high temperature/long life components are used in their manufacture.
PulseStop is warranted against defects in parts and manufacture for two years from purchase. It is not warranted against internal or external corrosion or any damage caused by liquid or dust ingress.
Schematic for PulseStop-S-C connection
Range Rover, Freelander 2 and other vehicles)
Land Rover 7-pin Trailer Socket Wiring
The 7-pin round socket with White Cover is designated 12-S |
|
| Mating White Plugs are available from Land Rover dealers Using the part number – RAA927 |
Pin #1 – Reverse lamp Pin #4 – Battery + Pin #6 – Ignition On + Pins # 3 & 7 - Ground |
The 7-pin round socket with the Black Cover is designated 12-N
Mating Black Plugs are available locally in your auto parts stores.
|
Australian wire colours
|
Pin # |
European wire colours
|
||
| Left hand turn | Yellow | 1 | Yellow | Left hand turn |
| Reverse lamp | Black | 2 | Black | Fog lamp |
| Ground | White | 3 | White | Ground |
| Right hand turn | Green | 4 | Green | Right hand turn |
| Service Brakes (trailer) | Blue | 5 | Blue | Right hand tail lamp |
| Stop lamps | Red | 6 | Red | Stop lamps |
| Tail lamps | Brown | 7 | Brown | Left hand tail lamp |
NOTE: inside the vehicle European manufacturers use European wire colours these colours are not the same as the Australian Standard.
European regulations E/ECE/324 – E/ECE/TRANS/505 stipulate two separate tail lighting circuits. The Australian standard has only one tail lighting circuit on terminal #7 therefore your vehicle’s wiring may need to be modified. This is usually done inside the vehicle by connecting the Brown and Black wires together after cutting off and isolating the Brown wire going to pin #5 of the trailer socket.
NOTE: this does not appear to work on the Mercedes ML and GL. A new unit is being considered for the Mercedes.
The Brown wire to pin #5 may be then used for electric trailer brakes.
The Blue wire to pin #2 may be cut off and isolated from the vehicle wiring and rewired for battery + or ignition + power to the trailer.
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