Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Vehicle speed sensor ”a” / Inspection procedure
Toyota Corolla (E120): Inspection procedure
Hint
: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel ratio was lean or rich, etc. At the time of the malfunction.
1 Check operation of speedometer
- Drive the vehicle and check if the operation of the speedometer in the combination meter is normal.
Hint
: the vehicle speed sensor is operating normally if the speedometer display is normal.


2 Inspect ecm(spd voltage)

- Shift the lever to the neutral position.
- jack up the vehicle.
- turn the ignition switch on.
- check the voltage between the terminals of the e4 and e5 ecm connectors as the wheel is turned slowly.
Standard:


Hint
: the output voltage should fluctuate up and down similarly to the diagram on the left when the wheel is turned slowly.


Replace ecm
Other materials:
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 ...
Overhaul
Hint: components:
1. Discharge refrigerant from refrigeration system
sst 07110–58060 (07117–58080, 07117–58090, 07117–78050, 07117–88060,
07117–88070,
07117–88080)
2. Disconnect cooler refrigerant liquid pipe a
Remove the bolt and disconnect the cooler refrigerant liqui ...
Overhaul
Hint:
installation is in the reverse order of the removal. But the
installation is indicated only when it has a
point.
In the rh side, work in the same procedure as in the lh side.
1. Remove front armrest assy lh
Using a screwdriver, remove the front armrest.
Hint:
tape the ...


