2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Deceleration Sensor Check

WARNING: This page is about a different car, the 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When inspecting deceleration sensor, remove it with bracket. Do not remove sensor from bracket. Do not apply voltage of 6 volts or more to terminals VGS and GGND.
  1. Connect 3 1.5 volt batteries in series.
  2. 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.
  3. Check output voltage of GL1 and GL2 terminals. See Fig 2.
  4. Do not tilt sensor too much or it may show wrong values. If dropped, sensor should be replaced with a new one. Sensor removed from vehicle should not be placed upside down.
Fig 1: Checking Deceleration Sensor
G00195347Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.