Air Bag Systems: Tools and Equipment

DRBII Diagnostic Readout Box or Equivalent Scan Tool, with current Diagnostic Program Cartridge

NOTE: The diagnostic test procedures in this manual have been designed specifically for use with the Chrysler DRBII (Diagnostic Readout Box II). However it should be possible to perform the same tests using an equivalent Scan Tool.

Scan Tool Connection

Connect the Scan Tool to the vehicle by plugging the body diagnostic cable connector into the ASDM data link connector.
- The connector is located on the ASDM.
- The ASDM is mounted above the floor in the front of the passenger compartment directly below the center of the dash, except ZJ which is next to the hand brake lever.

Voltmeter

Ohmmeter

Jumper Wires

USING A SCAN TOOL OR DRB




DRBIII Error Messages And Blank Screen
Under normal operation, the DRB will display one of only two error messages:
- User-Requested WARM Boot or User-Requested COLD Boot
If the DRB should display any other error message, record the entire display and call the MDS Hotline, or call for information and assistance at 1-800-825-8737. This is a sample of such an error message display:
ver: 2.14
date: 26 Jul93
file: key_itf.cc
date: Jul 26 1993
line: 548
err. Ox1
User-Requested COLD boot
Press MORE to switch between this display and the application screen.Press F4 when done noting information.

DRBIII Does Not Power Up
If the LED's do not light or no sound is emitted at start up, check for loose cable connections or a bad cable. Check the vehicle battery voltage (data link connector cavity 16). A minimum of 11 volts is required to adequately power the DRB.

If all connections are proper between the DRB and the vehicle or other devices, and the vehicle battery is fully charged, an inoperative DRB may be the result of faulty cable or vehicle wiring.

PERFORM VEHICLE COMMUNICATION TEST 1A.

Display Not Visible
Low temperatures will affect the visibility of the display. Adjust the contrast to compensate for this condition.