Step 4 - Deceleration Sensor Check

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

Apply battery positive voltage.
Connect IGA terminal to the battery positive (+) terminal, and GND terminal to the battery negative (-) terminal, and apply about 12 V between IGA and GND terminals.

NOTE:

If the sensor is tilted too much, it may show the wrong value.
If dropped, the sensor should be replaced with a new one.
The sensor removed from the vehicle should not be placed upside down.

Fig 1: Testing Deceleration Sensor

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Fig 2: Deceleration Sensor Terminal Specifications

Check the output voltage of GL 1 terminal.