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Causes of Inspection Failure - Taxi Vehicles

Vehicle Interior

  • Floor Mats
  • Seat Covers
  • Taxi Meter
  • Credit Card Machine

Vehicle Documents

  • Missing display of passenger rights
  • Missing zone map
  • Damaged or missing battery hold down
  • Missing or incorrect vehicle identification number
  • Missing or incorrect tags
  • Non operational HVAC
  • Incorrect trade name
  • Damaged or torn upholstery
  • Unacceptable sanitation
  • Missing hacker face


Vehicle Body

  • ID Color
  • Public Vehicle Identification Number (PVIN)
  • DCTC Approval Sticker
  • Damaged  or Rusted doors
  • Damaged and/or rusted quarter panel
  • Damaged and/or rusted hood
  • Damaged and/or rusted fenders
  • Damaged and/or missing bumpers
  • Damaged and/or missing bumper guards
  • Incorrect tag mounting
  • Missing or improper gas cap
  • Damaged body work


Vehicle Safety

  • Missing or broken mirrors
  • Missing or broken horn
  • Missing or damaged seatbelts
  • Missing or broken speedometer
  • Missing or broken gear indicator
  • Miscellaneous safety item failure
  • Loose seat
  • Non operational ignition lock
  • Damaged and/or rusted floor
  • Dirty engine
  • Dirty trunk
  • Wheel Chair Accessible Ramp


Vehicle Lights

  • Dome Light (Cruise)
  • Non operational signal lights
  • Non operational backup lights
  • Non operational tail lights
  • Non operational stop lights
  • Non operational tag lights
  • Non operational clearance lights
  • Non operational marker lights
  • Non operational fog lights
  • Incorrect lens color
  • Damaged or Missing side reflectors
  • Damaged or Missing rear reflectors
  • Non operational headlights
  • Non operational indicator lights


Vehicle Glass

  • Cracked or damaged windshield
  • Cracked or damaged side window
  • Cracked or damaged rear window
  • Non operational window controls
  • Unacceptable window tint
  • Missing or non operational wipers
  • Missing or damaged wiper blades


Vehicle Suspension

Damaged or Unacceptable:

  • Kingpin
  • Shocks
  • Ball joints
  • Control Arm
  • Rack and Pinion
  • Tie Rod Ends
  • Idler Arm
  • Pitman Arm
  • Sleeve
  • Springs
  • Steering Box
  • Steering Wheel
  • Bearings
  • Steering Linkage
  • Column
  • Alignment
  • Power Steering
  • Bellows
  • CV Joints

Vehicle Exhaust

  • Leaking exhaust
  • Loose exhaust
  • Flexible piping exhaust
  • Excessive exhaust noise
  • Excessive exhaust smoke
  • Excessive exhaust hydro carbon
  • Excessive exhaust carbon monoxide

Vehicle Tires

  • Unacceptable or worn tire tread
  • Unacceptable or cut tire
  • Mixed tire types
  • Unacceptable knots and bulges in tires
  • Over or under inflated tires
  • Visible tire cord
  • Tire recap/tread front
  • Missing lug nuts
  • Missing Hub Cap/Center Cap

Vehicle Brakes

  • Worn or warped rotors
  • Excessive brake noise
  • Leaking or damaged master cylinder
  • Leaking or Damaged wheel cylinder
  • Damaged or Non operational vacuum booster
  • Non operational parking brake
  • Non operational brake warning light
  • Incorrectly adjusted pedal reserve
  • Missing and/or damaged pedal pads


IDLE TESTING- For vehicles from 1983 and older

This test is used for most 1983 vehicles and older. The vehicle is tested at idle and (depending on vehicle class) at approximately 25 to 30 miles per hour.

IM 240-For vehicles from 1984-1995

The IM240 test is a chassis dynamometer schedule developed and recommended by the US EPA for emission testing of in-use light duty vehicles in inspection & maintenance (I&M) programs implemented in a number of states.

The IM240 begins by driving the vehicle onto the dynamometer, activating vehicle restraints, properly placing the exhaust collection device, and positioning the auxiliary engine cooling fan. An inspector then “drives” the vehicle according to a prescribed cycle displayed on a video screen. The inspector follows the driving cycle by using the accelerator pedal and the brake to speed up or slow down just as if the vehicle were being driven on a city street. A cursor on the video screen indicates vehicle speed. The inspector adjusts the speed to keep the cursor on the trace. This technique is easily and quickly learned by anyone who can drive a car.

On-Board Diagnostics (OBD)-  For vehicles from 1996 and newer

OBD is an acronym for On-Board Diagnostics. The OBD system consists of one or more computers installed in model year 1996 and newer vehicles that monitors emissions control components in the vehicle's engine, transmission, evaporative system, and exhaust system. If an OBD monitor detects a problem that might cause the vehicle's emissions to exceed allowable limits, a "check engine," or similar warning light is illuminated on the dashboard to alert the driver that something is wrong with the vehicle. By giving vehicle owners this early warning, OBD protects not only the environment but also consumers, identifying minor problems before they become major repair bills.