![](../../../img/35/ACB00832AB00ENG.png)
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1.
caution |
- Do not connect the battery terminals in
reverse as the wheel speed sensor may be
damaged.
- When the current value is measured by
the wheel speed sensor connector,
measure it with the wheel speed sensor
installed in the vehicle.
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Connect the circuit tester to the wheel speed sensor
using the special tool extra fine probe (MB992006), and
measure the sensor current as a single
unit. Standard value: 5 to 9 mA or 11 to 17
mA 2.If the measurement value is not
within the standard value range, replace the wheel speed
sensor with a new one.
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![](../../../img/35/AC505456AA00ENG.png)
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1.Connect the circuit tester
to the wheel speed sensor using the special tool extra fine
probe (MB992006), and measure the insulation resistance
between the terminal No. 1/2 and the wheel speed
sensor body as a single unit. Standard value:
1.5 MΩ or more 2.If the insulation
resistance is not within the standard value range, replace
the wheel speed sensor with a new one.
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![](../../../img/35/AC000965AA00ENG.png)
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Check whether the rotor teeth are
broken or deformed. Replace the driveshaft assembly for the
front side, or the retainer for the rear side, respectively,
if the teeth are damaged or deformed.
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