1997 Pontiac Grand Prix 3800 V6. ABS check tire press and TRAC off lights codes C1242 rear
esb will not hold motor.
Question:  Why does my pontiac have ABS light. What is rear esb and how do i fix it?

Answer:
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.


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.

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Pontiac grand Prix Tire Pressure And TRAC Lights
Question:
1997 Pontiac Grand Prix SE.
ABS, Trac off, check engine, tire pressure.  Transmission strainer
replaced.
Question I need all the lights off. Please 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.