Rear Acceleration Sensor: Inspection

INSPECT REAR ACCELERATION SENSOR

Connect 3 1.5 V dry batteries in series.

Fig 1: Locating Sensor Bracket Nut
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Connect terminal 3 (SGV) to the front battery's positive (+) terminal, and terminal 2 (SGND) to the rear battery's negative (-) terminal.

Measure the voltage of the sensor.

Standard voltage

VOLTAGE SPECIFICATION

Tester Connection	Sensor Condition	Specified Condition
SGRR (1) - SGND (2)	Sensor stationary	Approx. 2.3 V
SGRR (1) - SGND (2)	Sensor vibrating vertically	Change between approx. 1.0 to 4.0 V

NOTE:

Do not apply a voltage of more than 6 V.
Do not drop the acceleration sensor. If it is dropped, replace it with a new one.
The acceleration sensor removed from the vehicle must not be placed upside down.

HINT:

When the acceleration sensor is tilted, it may output a different value.

Fig 2: Locating Sensor With Bolt