tc and abs question st170
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From: dorset
tc and abs question st170
hi can i remove the fuse to get rid of tc without getting rid of abs that is if it is as simple as removing a fuse also how do i no if my st 170 has esp should there be a button for it or is it built in to the tc ???
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From: Lincs.
ESP was option on ST170, been ages since I've worked on one so can't think where the button is, or indeed if it has one. 
If it has one I guess it will be in centre console somewhere.
Cars with ESP usually have 6 valves on the ABS hydraulic unit, rather than 4 for ABS - Doubt you can see the ABS pump easily enough to count them.
Unless there is a TC switch,can't disable TC and not ABS,easily.
If it has one I guess it will be in centre console somewhere. Cars with ESP usually have 6 valves on the ABS hydraulic unit, rather than 4 for ABS - Doubt you can see the ABS pump easily enough to count them.
Unless there is a TC switch,can't disable TC and not ABS,easily.
Last edited by GVK.; Apr 25, 2012 at 07:45 PM.
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From: dorset
ESP was option on ST170, been ages since I've worked on one so can't think where the button is, or indeed if it has one. If it has one I guess it will be in centre console somewhere.
Cars with ESP have 6 valves on the ABS hydraulic unit, rather than 4 for ABS - Doubt you can see the ABS pump easily enough to count them.
Can't disable TC and not ABS. (easily)
If it has one I guess it will be in centre console somewhere. Cars with ESP have 6 valves on the ABS hydraulic unit, rather than 4 for ABS - Doubt you can see the ABS pump easily enough to count them.
Can't disable TC and not ABS. (easily)
PassionFord Post Whore!!
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From: Lincs.
Yep -If there's a button with a wheel spinning gravel on in centre console, that disables the TC.
Be careful pulling out ABS fuses as the modern cars use the ABS for the brake distribution (brake bias) I nearly wrote off a mate's VR6 turbo Golf at Snetterton a few years back as he had pulled the ABS fuses and the rear end locked up when I stood on the brakes from 140mph
Be careful pulling out ABS fuses as the modern cars use the ABS for the brake distribution (brake bias) I nearly wrote off a mate's VR6 turbo Golf at Snetterton a few years back as he had pulled the ABS fuses and the rear end locked up when I stood on the brakes from 140mph
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From: dorset
hi yes i no that lol but it still cuts in a bit it never seems to e 100% off iv heard even if the button is off it only turns off wen doing over 20mph . and i think its limiting the power slightly buy cutting in when i boot it it feels like something is holding it back sometimes . thanks
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PassionFord Post Whore!!
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From: Lincs.
LOL- I searched on Google and found this thread.
https://passionford.com/forum/ford-f...ml#post5808426
https://passionford.com/forum/ford-f...ml#post5808426
Thread Starter
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From: dorset
LOL- I searched on Google and found this thread.
https://passionford.com/forum/ford-f...ml#post5808426
https://passionford.com/forum/ford-f...ml#post5808426
PassionFord Post Whore!!
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From: Lincs.
The anti-lock control - traction control is an expanded version of the anti-lock brake system (ABS). The system is integrated with the ABS and uses the same wheel speed sensors and a similar hydraulic control unit (HCU).
The hydraulic control unit has additional internal solenoid valves incorporated to enable control modulation of the wheel brake pressures.
The traction control system reduces spinning of the driving wheels; this can be achieved as a result of intervention through the engine management system and/or the brake.
Two traction control systems are available: brake traction control system (BTCS) for 1.4L and diesel engines, and full speed traction control (TCS) for 1.6L, 1.8L and 2.0L engines.
At speeds above 40km/h, only large amounts of wheel slip is controlled by the brake function (ie aquaplaning).
In order to avoid possible increased wear to the braking system, the ABS/TCS and BTCS systems calculate the brake pad temperature and if it becomes to high brake intervention is switched off until such times that the temperature has been reduced.
The hydraulic control unit has additional internal solenoid valves incorporated to enable control modulation of the wheel brake pressures.
The traction control system reduces spinning of the driving wheels; this can be achieved as a result of intervention through the engine management system and/or the brake.
Two traction control systems are available: brake traction control system (BTCS) for 1.4L and diesel engines, and full speed traction control (TCS) for 1.6L, 1.8L and 2.0L engines.
At speeds above 40km/h, only large amounts of wheel slip is controlled by the brake function (ie aquaplaning).
In order to avoid possible increased wear to the braking system, the ABS/TCS and BTCS systems calculate the brake pad temperature and if it becomes to high brake intervention is switched off until such times that the temperature has been reduced.
Brake Traction Control System (BTCS)
This system minimizes wheel slip on the driven axle to enhance traction at lower speeds and is achieved by controlled braking of the spinning driving wheel, when the grip at the driven wheels are different. It is an integral function of the ABS and cannot be switched off.
The BTCS system is only active at road speeds up to 85 km/h (53 mph). When the system is active the driver is made aware of the fact by the illumination of a warning indicator located in the instrument cluster.
The spinning wheel is braked by the ABS system.
This transfers a greater proportion of the engine torque through the differential to the other driven wheel, thereby increasing the utilization of the available traction control works at all speeds below 50 km/h.
Full Speed Traction Control (TCS)
This system controls wheel slip on the driven axle by a combination of engine torque reduction and brake control to enhance vehicle stability, steerability and traction at all vehicle speeds. The TCS function can be switched off and is controlled by a switch in the floor console.
If the ABS/TCS module registers that the driving wheels are spinning, the EEC V Powertrain Control Module (PCM) can be requested to reduce the engine torque via the standard corporate protocol (SCP) bus (ISO 9141.Ford).
The ABS/TCS module calculates the required engine torque during traction control and sends this request to the EEC V PCM.
The EEC V PCM then calculates the required ignition timing and the number of fuel injectors to be deactivated in order to achieve the required engine torque.
The advantage of the TCS system over the BTCS system are as follows:
reduce load on the braking system
reduced load on the powertrain
improved directional stability
improved steering
shorter reaction time
operates at all vehicle speeds
This system minimizes wheel slip on the driven axle to enhance traction at lower speeds and is achieved by controlled braking of the spinning driving wheel, when the grip at the driven wheels are different. It is an integral function of the ABS and cannot be switched off.
The BTCS system is only active at road speeds up to 85 km/h (53 mph). When the system is active the driver is made aware of the fact by the illumination of a warning indicator located in the instrument cluster.
The spinning wheel is braked by the ABS system.
This transfers a greater proportion of the engine torque through the differential to the other driven wheel, thereby increasing the utilization of the available traction control works at all speeds below 50 km/h.
Full Speed Traction Control (TCS)
This system controls wheel slip on the driven axle by a combination of engine torque reduction and brake control to enhance vehicle stability, steerability and traction at all vehicle speeds. The TCS function can be switched off and is controlled by a switch in the floor console.
If the ABS/TCS module registers that the driving wheels are spinning, the EEC V Powertrain Control Module (PCM) can be requested to reduce the engine torque via the standard corporate protocol (SCP) bus (ISO 9141.Ford).
The ABS/TCS module calculates the required engine torque during traction control and sends this request to the EEC V PCM.
The EEC V PCM then calculates the required ignition timing and the number of fuel injectors to be deactivated in order to achieve the required engine torque.
The advantage of the TCS system over the BTCS system are as follows:
reduce load on the braking system
reduced load on the powertrain
improved directional stability
improved steering
shorter reaction time
operates at all vehicle speeds
Last edited by GVK.; Apr 25, 2012 at 10:12 PM.
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