1980 buick riviera headlights and running lights wontb turn on turn signals work and brake lights work can you trouble shoot me please
The fact that both are out points to the headlight switch or connector. There's a separate fuse for tail lights but the head and park (front) lights are powered by a fuse link that controls a lot of other stuff you would notice. Reach under the dash and put your hand on the light switch, feel for the wires then feel the other side of the switch for a small button then pull the switch all the way on, depress the button and pull the switch knob and shaft the rest of the way out, now remove the special screw and the switch. I hope this helps. Take care. If you need more help from me use the testimonial button and it will show up in my email.
Buick Cars &...
ECM 2005 Buick rendezvous replacement
Do you know that a replacement ECM would need programming ? Dealer .An it's a PCM - powertrain control module ,because transmission an engine modules are inside the same box (module) .Service of the PCM should normally consist of either replacement of the PCM or EEPROM programming. If the diagnostic procedures call for PCM replacement, inspect the PCM first to see if the PCM is the correct part. If the PCM is faulty, remove the PCM and install the new service PCM.
The new service PCM will not be programmed. You must program the new PCM. DTC P0602 indicates the EEPROM is not programmed or has malfunctioned.
There are no user serviceable parts in this PCM. The PCM should never be opened for any reason.
Important: When replacing the production PCM with a service PCM (controller), it is important to transfer the broadcast code and production PCM number to the service PCM label. Do not record this information on the PCM cover. Transfer allows positive identification of PCM parts throughout the service life of the vehicle.
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
Remove the left sheet metal diagonal brace. Refer to Front End Sheet Metal Diagonal Brace Replacement - Left Side in Body Front End.
Remove the air cleaner assembly cover and lift the PCM from the assembly.
Disconnect the harness connectors from the PCM.
Remove the PCM from the engine compartment.
Not finding what you are looking for?