What do DTC's in history mean?

Tiny
ONER59
  • 1996 CADILLAC DEVILLE
  • 59,000 MILES

PC 1520
TC 0073
RS 0027
PZ 2042
The electronic ride control is not working. Rear of car is too high and there is no dampening in front shocks.

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Sunday, May 13th, 2012 AT 7:04 AM

2 Replies

Tiny
KHLOW2008
  • EXPERT
  • 41,975 POSTS

That means errors had been detected previously and stored in history. If the error did not reoccur, the currect DTC would not show them.

How did you get the trouble codes? They do not seem to be in the correct format.

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Sunday, May 13th, 2012 AT 7:26 AM
Tiny
KHLOW2008
  • EXPERT
  • 41,975 POSTS

RS0027 is rear right damper solenoid valve open circuit. Could be due to a faulty solenoid valve or a break in the wiring circuit.

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Sunday, May 13th, 2012 AT 7:33 AM

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