Mazda 3 Service Manual: Vehicle Speed Sensor (VSS) Inspection [FS5 A EL]
On-Vehicle Inspection
1. Inspect the power supply circuit for the VSS.
a. Remove the insulator from the transaxle.
b. Disconnect the VSS connector.
c. Switch the ignition to ON (engine off).
d. Measure the voltage at VSS connector terminal A (harness-side).
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If there is any malfunction, repair wiring harness between VSS and AT main relay.
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VSS specification
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B+
e. Switch the ignition to off.
f. Connect the VSS connector.
2. Inspect the GND circuit for the VSS.
a. Switch the ignition to off.
b. Measure the voltage at VSS connector terminal C (harness-side).
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If there is any malfunction, repair wiring harness between VSS and GND.
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VSS specification
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Below 1.0 V
3. Inspect the signal circuit for the VSS.
a. Connect the oscilloscope to the following TCM connector terminals and set it as below.
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(+) lead: TCM terminal Z
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(-) lead: battery negative terminal
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Oscilloscope setting: 1 V/DIV (Y), 2 ms/DIV (X), DC range
b. Start the engine.
c. Measure the wave form when the following conditions are met.
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Gear position: 3GR
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Vehicle speed: 30 km/h {19 mph}
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If there is any malfunction, replace the VSS..
Vehicle Speed Sensor (VSS) Removal/Installation [FS5 A EL]
CAUTION:
If foreign materials are stuck to the sensor, disturbance by magnetic flux
can cause sensor output to be abnormal and thereby negatively affect control.
Make sure that foreign m ...
Other materials:
Front Lower Arm Inspection
1. Remove the front lower arm from the vehicle..
2. Inspect the arm for bending or damage, and the ball joint for excessive looseness.
If there is any malfunction, replace the front lower arm.
3. Rotate the ball joint stud 5 times. Install the SST to the ball
joint stud, measure t ...
Rear Window Glass Removal
4SD
1. Disconnect the negative battery cable.
2. Remove the following parts:
a. Rear seat cushion.
b. Rear scuff plate.
c. Rear side seat back.
d. C–pillar trims.
e. Rear package trim.
f. Tire house trims.
3. Remove the fasteners.
4. Set the headliner out of the way.
5. Disc ...
Door Adjustment
1. Loosen the door hinge installation bolts.
2. Adjust the gap and height difference to the standard range by moving the door
back and forth, left and right.
Standard range
a: 2.5―4.5 mm {0.10―0.17 in}
b: -1.0―1.0 mm {-0.039―0.039 in}
c: 2.5& ...
