Cadillac Repair: 92 Eldorado Climate control, fuel gauge, economy section


Question
QUESTION: Hi,
Every once in awhile the Instrument panel cluster will act normally. But for most of the time shortly after starting the car it will show straight lines in the fuel economy section,goes into High speed defrost and none of the controls will work until you turn engine off and start again, only to have it do the same thing again. The INFL REST light flashes and then stays on. The car starts great has lots of power and drives fine. The Instument cluster has analog Speedo, fuel gauge and Tachometer. Any help is greatly appreciated!
Todd

ANSWER: IS or HAS the check engine light ever illuminated on the dash while driving the car ?.

The most common fault would be either the:

instrument cluster.
BCM computer.
DERM.

You need to e-mail: onlineautohelp@msn.com for pictures and test directives to diagnose the problem.

---------- FOLLOW-UP ----------

QUESTION: Hi,
Yes the check engine light does come on while driving. Sometimes the light goes out and then may come back on, but not all the times. It consistently shows R024, R026 and R036 codes that I am not able to clear. Thank you for your help with this frustrating problem.
Todd

Answer
R024 means that you have excessive voltage in the steering column for the air bag system.

R026 means you have an open circuit in the steeering column.

There is NO R036 code.

Check them again.

You can obtain pictures and diagnostic information by e-mailing: onlineautohelp@msn.com in order to fix the problem.

CAUTION: Working on an air bag system is VERY dangerous and can result in personal injury or DEATH if you make a mistake and accidentally deploy one of the air bags.