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Diagnostic Trouble Codes (DRB)
For diagnostic trouble codes covered in this manual see the menu, DTC TEST, at section 7.1 General troubleshooting.
Handling No Trouble Code Problems
If the Powertrain Control Module has been changed and the correct VIN and mileage have not been programmed, a DTC will be set in the ABS, Air Bag and SKIM modules when equipped. In addition, if the vehicle is equipped with a Sentry Key Immobilizer Module (SKIM), Secret Key data must be updated to enable starting.
For ABS and Air Bag systems:
3.4 Using the DRB
Refer to the DRB user's guide for instructions and assistance with reading trouble codes, erasing trouble codes, and other DRB functions
3.5 DRB 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. This is a sample of such an error message display:
date: 26 Jul93
date: Jul 26 1993
User-Requested COLD Boot
Press MORE to switch between this display
and the application screen.
Press F4 when done noting information.
3.5.1 DRB Does Not Power UP
If the LED's do not loght or no sound is emitted at startup, check for loose cable connections or a bad cable. Check the battery voltage (data link connector cavity 16). A minimum of 11 volts is required to adequately power the DRB.
3.5.2 Display Not Visible
Low Temperatures will affect the visibility of the display. Adjust the contrast to compensate for this condition.
This concludes the General Information section.
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