Problem with my 2001 Chevy Monte Carlo.
3800 V6.
GM Computer codes = P0128 P0440 P1440
Question = I WOULD LIKE TO KNOW WHAT EXACTLY DOES CODES P0128 P0440  P0140 MEANS.

Answer:
P0128- Coolant temperature beyond thermostat regulating temperature.
P0440- Evaporative emission  system problem.
P1440- EGR position performance.
Problem with my 2006 chevy Monte Carlo 3.9L
dash lights =
service tire monitor system
GM Computer codes = I have a OBDII
question =   service tire monitor system. Have remote start remote doors all work. Receiver not picking up a pressure reading. All blank. Will OBD2 help? Diagnosis exact problem. The pressure comes and goes
Answer: Your scanner would need to be able to read the Remote Control Door Lock Receiver (RCDLR).
If one of the wheel sensors were bad, it should just show 1 tire pressure as a "--". You could try a re-learn procedure with or without a scanner.

If there is an overall system problem, it says "service system"
There is a bulletin for changing the receiver module, antenna, and remotes that may apply.
There is an article on our site with more detail.
Just go to our site and search "Monte carlo keyless" or Impala keyless".
2001 Monte Carlo Codes P0128, P0440 And P1440

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