Powertrain, generic · Transmission
P083E Transmission Fluid Pressure Sensor/Switch G Circuit Intermittent
Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible
Transmission fluid pressure sensor/switch G is one of up to eight pressure inputs (A to H) that SAE J2012 provides for automatic gearboxes. No maker could be found that uses the letter G: GM's tables up to 2025, Ford's summaries and Allison stop at A to E. The description therefore follows the general rule for gearbox inputs in California's OBD regulation, which demands circuit and plausibility checks, and the logic of the A and B codes. P083E reports short dropouts or signal jumps without a lasting low or high, typically from a loose contact at the gearbox connector.
Likely causes
Loose contact or corrosion at the gearbox connector
Chafed spot in the harness
Dirt at sensor or valve causing signal jumps
Sensor faulty internally
Symptoms
- Warning lamp coming and going
- Occasional shift shocks
- Brief limp mode
Repair estimate
DifficultyMediumWorkshop job
Parts and labour€120–900
Time1–5 h
Typical range across vehicles; the real cost depends on what the testing finds.
Parts involved
transmission fluid pressure sensortransmission valve bodytransmission wiringtransmission control module
Related codes
References: law.cornell.edu, gearsmagazine.com.