STEELMAN CHASSISEAR Diagnostic Tool (00-024)

STEELMAN CHASSISEAR DIAGNOSTIC TOOL

TECHNICAL SERVICE BULLETIN

STEELMAN CHASSISEAR DIAGNOSTIC TOOL

A new required tool is being sent to all dealerships. The Steelman ChassisEAR(tm) is an electronic diagnostic tool designed to locate and isolate sounds in a vehicle during a test-drive. This can be very useful in locating the cause of body creaks, rattles, and squeaks. See (Fig 1 ).

The ChassisEAR kit contains:

• Six microphones built into clamps
• A control box (uses a 9-volt battery)
• Headphones
• Velcro straps and tie wraps
• Notepad
• Vinyl pouch
• Carrying case
  Fig 1: ChassisEAR Diagnostic Kit

  

USING THE CHASSISEAR

By fastening the six microphones to different parts in the area you are troubleshooting, you can locate which part or parts are causing a noise.

For example, refer to Service Bulletin 00-007 , Growling or Whining From the Rear Wheel(s). The DIAGNOSIS is to test-drive the vehicle and verify the noise is from a wheel bearing. To use the ChassisEAR to diagnose the noise:

1. Clamp one of the microphones to the left rear backing plate. Each microphone lead is color-coded to one of the colors on the control box.
2. Clamp another microphone to the right rear backing plate.
3. If desired, clamp other microphones to other parts of the rear suspension. This could help you isolate the problem if it is not a wheel bearing.
4. Record the location of each microphone, by color code, on the note pad.
5. Route the microphone leads into the passenger compartment. Use the Velcro straps and tie wraps to anchor the leads. Do not route the leads near any moving parts or near the exhaust system.
6. Connect the microphone leads to the control box. See (Fig 2 ).
   Fig 2: Control Box

   
7. Connect headphones to control box. Have an assistant drive vehicle as described in DIAGNOSIS while one person listens to each microphone.
   NOTE: The ChassisEAR amplifies road noise and other normal sounds. Familiarize with how these normal noises sound through the headphones.

ORDERING INFORMATION

One ChassisEAR kit was shipped to each current dealer as a required special tool. To order additional kits or replacement parts, contact the Acura Tool and Equipment Program at (888) 424-6857.