RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

VSC Check Engine on

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Old 02-16-08, 12:47 PM
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GeorgeD
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Default VSC Check Engine on

Have 2002 RX 300 approx 77,000 miles.
Mechanic hooked to machine and reads:
*ABS/VSC/TRAC
DTC: Description C1223 Malfunc in ABS control system,
C1246 Malfunction in Master cylinder pressure sensor
* Engine and ECt
PO440,PO446 Evaporative Emission control system malfunction.

Deciding how to proceed without tons of repair money.
Car runs perfect however concerned however check engine and VTC shows up .
Diagnosis was done with Auto Boss Diagnostic
Thanks for any advice.
George:
Old 02-16-08, 01:04 PM
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DaveGS4
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George,

The evaporative part sounds like it could be something simple (not sure about the other stuff)... Lexus cars will pop on the CEL when the gas cap is not tightened and air gets into the system. Did you just get gas before the CEL came on?
Old 02-17-08, 12:23 AM
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GeorgeD
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Dave,
Thanks for your reply. Can't remember if i got gas right before CEL came on. Could be the case.
Thanks again!
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