Test Description
WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers in the diagnostic procedures.
- 2
When the system is operating correctly the HO2S voltage should toggle above and below the specified values. - 5
If the HO2S low signal circuit is shorted to ground, the HO2S voltage will be less than 400 mV when the HO2S high signal circuit is jumped to ground. - 6
The specified value is what is measured on a correctly operating system. - 7
The specified value is what is measured on a correctly operating system. - 14
The new PCM must be programmed.