Was driving fine then traction control service and abs came on then all the gauges went out and would flick on and off when i parked and turned off the car it would not crank everything came on as normal but noticed it has no gear indicator showing what gear its in i can shift thru all gears but no indication to what gear i am in assuming why it wont start any help would be awesome
The gear indicator is a electonic signal from the PCM / ECM which ever engine computer your vehicle has . A message is sent over the GMLAN serial data network . Do you know what C.A.N. is ? controller area net work . In fact all the thing's on your instrument cluster , speedometer , fuel gauge , temp., ABS , traction control , plus the starting is the samething . The ignition switch is a input to the BCM - body control module . When it see's voltage from ignition switch it sends a message via data bus to the engine computer which in turn will energize the starter relay cranking the engine . There is nothing you can or should do to try and fix this yourself . Your best bet , take it to a qualified repair shop . (dealer ) Because not knowing these systems you can render your vehicle none fixable . How to Diagnose Controller Area Network CAN
Testimonial: "thanks for your help turns out it was wire harness into the pcm had bad connections thanks again!"
I haven't had to replace the PRNDL/gear sector switch yet. They are inside the transmission at the top, behind the valve body. I have replace the solenoid packs. Which the PRNDL plugs into. My guess would be the solenoid pack. But it would have to be tested first.
Testimonial: "thanks for your help was bad connection at the pcm"
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