Enhanced traction system?
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Enhanced traction system?
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i own a 2001 pontiac sunfire with automatic transmission, sometimes when i drive the enhanced traction system turns on and my steering wheel gets like stuck i can't move it and the engine has no power, i press on gas but the car won't move, i was wondering if i turn the system off by pressing ets and disabling it will the ets be able to affect my car at all in any way while i'm driving?
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UCANTCME
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This is what is does and what you need to do is have the vehicles computer scanned to see just what is happening.........
The Enhanced Traction System (ETS) is designed to limit wheel slip during acceleration.
This objective is accomplished by cutting fuel to selected cylinders, retarding spark and upshifting the transmission.
The EBCM monitors wheel speed slip through the ABS wheel speed sensors and determines the desired torque reduction needed to minimize wheel spin.
The torque reduction the EBCM requests may result in a combination of fuel cutoff, spark retard, and upshifting the transmission, depending on the torque reduction required.
This request is sent from the EBCM through the serial data link to the Powertrain Control Module (PCM).
The PCM then calculates and employs fuel cutoff and spark retard values to achieve the requested engine torque.
If the EBCM determines that the engine torque reduction is not sufficient to minimize wheel spin, it will request a transmission upshift.
The ETS will be enabled when the ETS switch is in the ON position (TRAC OFF indicator not illuminated), the engine coolant temperature is within normal operating range and the manifold air temperature is within normal operating range.
Some of the items that can inhibit or disable ETS are:
ETS OFF switch is in the OFF position. (Disabled)
EBCM senses a valid brake switch input. (Disabled)
Park brake is engaged. (Disabled)
Catalytic converter temperature rises above the normal operating range. (Inhibited)
Engine coolant temperature is not within normal operating range. (Inhibited)
Manifold air temperature is not within normal operating range. (Inhibited)
PCM sets a DTC that turns on the CHECK ENGINE lamp. (Inhibited or Disabled)
PCM sets a Failure Record that does NOT turn on the CHECK ENGINE lamp. (Inhibited or Disabled)
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