Have a 2006 Monte Carlo putting out a C0558 code which is an undetermined code in the scanner I am using. The parking brake, traction control, and ABS lights are on. On the same vehicle a C0899 Device 1 voltage low code is also present. The BCM has been replaced. Any suggestions on what to try or any possible causes to check?
Kev2, thanks for the tip. My scanner is not a tech-2 so I will need to take the car to someone for the BPP calibration. I have read up on that issue. What would be involved to flash the voltage and module? I know there may be corrosion on the terminals due to fretting and have read how to address that problem as well.
the voltage issue will not need a scanner. what is the overall condition of charging system- has battery died, have you checked output? There could be a wiring problem - that could be a ign switch or remote starter NOT powering all modules. I cannot pull up a monte carlo diagram.
Charging system is on the low side, 12.5 - 13 volts @2000rpm. Battery replaced last summer and holding a charge well. Grounds to the BCM have been checked. I have not however checked the voltage at the BCM.
A low voltage issue and module may need to be flashed. I do not think the BCM is a bolt in, needs calibration. C0588 - Calibration Data Not Programmed C0899 - EBCM low voltage.