G-Sensor and System Control Unit

TESTING

1. Remove the front center console to gain access to the G-sensor.
2. Connect a positive terminal of a controllable power source to the G-sensor terminal 1 and a negative terminal to G-sensor terminal 3, then apply 7.3V (the limits of voltage guaranteed for operation is 7.0–7.5V).
3. Connect a voltmeter to terminal 2 and measure the variations of voltage when the G-sensor is tipped up and down (tip the G-sensor from the normal mounting position to the position where the front face is facing straight down).

   Fig. 1: Measure the voltage from terminal 2 while supplying 7.3V to terminals 1 (positive) and terminal 3 (negative)mdash;1992–95 Pick-ups

   Fig. 2: With the power supply and voltmeter hooked to the connector, tilt the G-sensor as shown and measure the voltage change

4. When the G-sensor is sitting in the position in which it is normally mounted the voltage should be 1.1–1.5V and when the G-sensor is tipped down, the voltage should be 4.6–5.0V.
5. If the G-sensor does not register these voltages, replace the G-sensor with a new unit.