Problem with my 1997 Pontiac Grand Prix
3800 V6
ABS check tire press and TRAC off lights
codes = c1242 rear esb will not hold motor
GM tech = jk
question = Why does my pontiac have ABS light. What is rear esb and how do i fix it
JK:
ESB stands for 'expansion spring brake' and it is internal to the abs modulator
assembly. This code is because the piston is slipping in the abs assembly. A
common cause for this is that the motor gear nut has loosened up, and the gear is
slipping, therefore not holding the ESB. The cover underneath the motor pack can
be removed, and the nuts on the 3 gears checked to see if one is loose. It is also
possible that the EBCM (electronic brake control module) is faulty. What needs to
be done is have the system hooked up to a scan tool that can read data and control
abs functions to watch voltage numbers and decide what is at fault.
WARNING LIGHTS
Pontiac Grand Prix ABS and TRAC off lights.
Anti-lock brakes are designed to prevent skidding and help drivers maintain steering
control during an emergency stopping situation. In cars equipped with conventional
brakes, the driver pumps the brakes, whereas in cars equipped with four-wheel ABS,
the driver keeps a firm foot on the brake allowing the system to rapidly and
automatically pump the brakes. Because the wheels don't lock up, drivers have the
ability to steer around hazards if they are unable to stop in time.
When the braking force created by the driver is greater than the tire can handle, the
wheel can lock up. Locking wheels can create vehicle instability problems and prevent
steering around obstacles in the road. Stopping distance on many slippery surfaces will
also increase with locked wheels. Four-wheel ABS prevents wheel lock-up in situations
in which the wheels might normally lock, such as on slippery roads.


1997 Pontiac Grand Prix SE. ABS, Trac off, check engine, tire pressure
Repairs= transmission strainer.
Question = I need all the lights off. Pls tell me what need to be done. Cause every car place I take it
to tells me they dont deal with my type of car.
Answer: I can't give you an exact diagnosis without
knowing what trouble codes are stored in your car. The
trac off and abs light are probably related, and most
likely the cause is a bad wheel speed sensor or hub
bearing. There can be a wiring harness problem as well
if any moisture has gotten into the harness. The check
engine light is on because you have a problem with
one or more sensors on the engine/drivetrain. Again,
would need the exact codes to help you more. The tire
pressure light can be resolved by setting all the tires to
the correct pressure, and then resetting the light.