Bought with trans slipping cos it's a diesel. have no communication with TCM getting code po802 , Replaced ignition switch. abs and air bag lights on but will fix those soon. need help. thanks.
2003 6.6 Silverado H.D Duramax code PO802
- Thread starter SMOKIN
- Start date
Home ChevroletP0802
Make: Chevrolet
Code: P0802
Definition: Malfunction Indicator Lamp Circuit Malfunction
Description: Engine started and the PCM detected an incorrect voltage on the TCM MIL request circuit.
Cause:
Chevrolet DTC P0802
Make: Chevrolet
Code: P0802
Definition: Malfunction Indicator Lamp Circuit Malfunction
Description: Engine started and the PCM detected an incorrect voltage on the TCM MIL request circuit.
Cause:
- TCM MIL Request circuit is open, shorted to ground or to B+
- ECM has failed
- TCM has failed
Yes same suspicion. previous owner hooked up stuff in cab and wires all over with silly connecting anything with power. dont know where to check the wires, I'll start from the TCM. will let you know.
