GM OBD Trouble Code 70
A/C Pressure sensor circuit error (high pressure indicated)
The ECM monitors the A/C system pressure sensor circuit. If the system pressure is to high the ECM will not allow the A/C compressor to operate.
Fault Code Description
- 70 - A/C Pressure sensor circuit error (high pressure indicated)
Symptoms
- Poor A/C performance
Common Problems
- Faulty A/C pressure sensor
- Quick test - On A/C systems with multiple pressure sensors, on a cold engine with the key on and the engine off the scan tool readings for the A/C pressure sensors should all be the same.
Related Questions
See what others have asked about this, or visit the Questions page to ask your own question.
Thermostat stuck engine got hot dash message said
“ hot engine no working a/c. fixed that problem now my a/c won’t...
Why would my a.c. quit right after it got recharged.saw some smoke or steam emit from under hood and smelled fumes...