Volvo AWD V70-XC70 Forum

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Check Engine Light V70-XC70 1999

1999 V70 AWD I recently replaced a front O2 sensor, Spark Plugs, Serpentine belt. Timing belt and tensioner. The check engine light came on after the work was completed. Checked for fault codes with an obdII reader. The reader advises that everything passes. No codes. Reset the light but it keeps reappearing. Any ideas?








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Check Engine Light V70-XC70 1999

Check engine can also be triggered by auto trans and ABS problems without necessarilly having a light for those systems.








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Check Engine Light V70-XC70 1999

Disconnect the battery for 15 minutes (make sure you know the radio code) and see if this clears the codes. The computer, being used to the old set-up...worn parts may not know how to read the new ones and has to adjust. This will help it adjust.

Good luck,
MIJ
--
1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon








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Check Engine Light V70-XC70 1999

Any other warning lights?
What is the mileage?








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Check Engine Light V70-XC70 1999

mileage is 103580 srs light has been on since replacing the ignition switch. If it is transmission how do I retrieve the codes?







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