Hi, I'm using a VPW Scantool card with ELM322 chip, when trying to 'read codes' I receive the error "43" response received but data has errors wrong number of bytes was received from ELM 32x device. I've also tried Scantool.exe V1.06 and receive a "Bus error: OBDII bus is shorted to Vbatt or Ground". I've connected the card to a 98 Chevrolet Silverado K3500 and everything seems to work fine. Just can't seem to get the 99 Pontiac to read, any suggestions? The OBDII connector on the 99 Pontiac has pins 2,4,5,9,16 populated, the 98 Chevrolet has pins 2,4,5,8,15,16 populated. However the VPW scantool board only uses pins 2,5,16 on the OBDII connector.
Thanks in advance.