Test G: Deceleration Sensor Check

CAUTION: While checking the deceleration sensor operating diagnosis system, ABS does not work and brake system works as a conventional brake system.

NOTE: When testing deceleration sensor, DO NOT apply voltage of 6 volts or more to terminals VGS and GGND.

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. When replacing the deceleration sensor, perform the deceleration sensor zero point calibration. See DECELERATION SENSOR ZERO POINT CALIBRATION under PROGRAMMING.

Connect 3 1.5 volt batteries in series.
Connect VGS terminal to batteries positive terminal, and GGND terminal to batteries negative terminal. Apply about 4.5 volts between VGS and GGND terminals. See Fig 1.
Check output voltage of GL1 and GL2 terminals. See Fig 2.

Fig 1: Checking Deceleration Sensor

Fig 2: Checking Output Voltage Of GL1 & GL2 Terminals