Toyota Corolla (E120): Brake
On–vehicle inspection
1. Inspect brake line pipes and hoses

Hint
: work in a well–lighted area. Turn the front wheels fully to the right or left before begining.
- check all the brake lines and hoses for:
- damage
- wear
- deformation
- cracks
- corrosion
- leaks
- bends
- twists
- check all the clamps for tightness and the connections for leakage.
- check that the hoses and lines are not near sharp edges, moving parts and the exhaust system.
- check that the lines are installed pass through the center of the grommets.
2. Inspect front brake pads and discs
3. Inspect rear brake linings and drums
4. Inspect or change brake fluid
fluid: sae j1703 or fmvss no.116 Dot3
Other materials:
Inspection procedure
1 Reconfirm dtc
Check the dtc
2 Inspect skid control ecu connector securely connected
3 Inspect skid control ecu connector(ig1 terminal voltage)
In case of using hand–held tester:
check the voltage condition output from the ecu displayed on the
hand–held tester.
O ...
Circuit description
When the ignition switch is turned on, battery positive voltage is applied to
the coilwhich closes the contacts
of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm.
This signal causes current to flow to the coil, closing the contacts of the efi
relay and supplyin ...
PCS (Pre-Collision System)
The pre-collision system
uses sensors to detect
objects in the path
of the vehicle. When the
system determines that the
possibility of a frontal collision
with a detectable
object is high, a warning
operates to urge the driver
to take evasive action and
the potential brake pressure
is increased to h ...


