Code P1529

  • Thread starter Thread starter accent
  • Start date Start date
A

accent

My Accent 2001 AT sometimes throws a code P1529 and this causes the
CEL to light. It happens when I drive in stop go gridlock traffic.
When this happens the car drives like overdrive is off. If I stop and
restart the car, it drives normal but the CEL remains lit.

Any ideas?
 
accent said:
My Accent 2001 AT sometimes throws a code P1529 and this causes the
CEL to light. It happens when I drive in stop go gridlock traffic.
When this happens the car drives like overdrive is off. If I stop and
restart the car, it drives normal but the CEL remains lit.

Any ideas?
Click to expand...

Not sure what you mean when you say that in grid lock traffic the car drives
like OD is off. It should. OD should not engage until you reach highway
speeds. Perhaps you could explain that differently.
 
P1529 is simply a code indicating the TCM requested a check engine lamp
(and put the transmission in fail-safe -- 3rd gear only). Further clues
as to the cause can be obtained by checking DTC's in the TCM (transmission
control module).
 
P1529 is simply a code indicating the TCM requested a check engine lamp
(and put the transmission in fail-safe -- 3rd gear only). Further clues
as to the cause can be obtained by checking DTC's in the TCM (transmission
control module).
Click to expand...

Is checking the DTC in the TCM done with a different scan tool? (I
just paid $40 to get P1529 code read)
 
Not sure what you mean when you say that in grid lock traffic the car drives
like OD is off. It should. OD should not engage until you reach highway
speeds. Perhaps you could explain that differently.
Click to expand...

Sorry. The problem begins in low speed traffic (thunking, rough
shifting AT) ... after the car behavior on the highway is like driving
with OD off. Apparently this is a fail safe mode.
 
Unfortunately, I cannot tell you what the generics do. But the dealer tool
can read any dtc in any computer. If this was done at a dealer, I'd
recommend going back and demanding more information. If elsewhere, I
don't know whether they have the capability.
 
Unfortunately, I cannot tell you what the generics do. But the dealer tool
can read any dtc in any computer. If this was done at a dealer, I'd
recommend going back and demanding more information. If elsewhere, I
don't know whether they have the capability.
Click to expand...

The CEL has been cleared so it may be too late to get the DTC from the
TCM. I may have to wait until the next incident.
 
Maybe, maybe not. If they didn't access the TCM, the code(s) should still
be there. I'd expect that if they cannot read TCM codes that they also
cannot clear them.
 
Why did you pay $40 for that, simply take it to Autozone and they'll
pull it for free!!!!
 

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