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..
Knock Sensor (Ks) Removal/Installation [Mzr 2.0, Mzr 2.5]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Remove the intake manifold..
5. Disconnect the KS connector.
6. Remove the KS.
...
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:
Locking, Unlocking with Request
Switch (With the advanced keyless
function)
All doors and the liftgate can be locked/
unlocked by pressing the request switch
on the front doors while the key is being
carried.
(5–door)
The request switch on the liftgate can only
be used to lock all doors and the liftgate.
Front doors
Liftgate (5-door Lock only)
To lock
To l ...
Engine SST [Mzr 2.0, Mzr 2.5]
1: Mazda SST number
2: Global SST number
Example
1:49 UN01 052
2:310–D005
Spring lock coupler tool (green)
1: 49 C017 5A0
2: –
Engine support set
1:49 B011 105
2:–
Adapter
1 ...
Transaxle Fluid Temperature (Tft) Sensor Inspection [FS5 A EL]
CAUTION:
Water or foreign objects entering the connector can cause a poor connection
or corrosion. Be sure not to drop water or foreign objects on the connector
when disconnecting it.
On-Vehicle Inspection
1. Perform the following procedures.
a. Remove the battery cover..
b. ...