1999 Chevy Camaro V8 Two Wheel Drive Manual 238000 miles
Hand held code reader will not read. Message says connect cables, they are connected!
Further checking shows no +12v at pin #16, ground on pin 4 OK.
So diagnostics codes can not be received. There is +12v at ECM on the orange wires as required and all fuses are good.
Can't find nor trace where the +12v at pin #16 on the ALDL connector comes from.
Is this an ECM problem? Or where do you start to trace this? It does not show up any schematics, as to where the pin 16 ALDL orange wire is connected to a source. LOST without diagnostics! Any clues?
have the same problem?
Tuesday, March 17th, 2009 AT 12:54 PM