What Does P0876 Mean?
The TCM has determined that the transmission fluid pressure sensor/switch 'D' circuit output does not correlate with expected values for current operating conditions. The sensor is providing readings but they are outside the expected range during specific shift events or operating modes. This range/performance fault suggests either a sensor drift or an actual hydraulic pressure issue in circuit 'D'.
Common Causes
28%
Degraded transmission fluid causing abnormal pressure behavior
27%
Transmission fluid pressure sensor 'D' drifting out of calibration
20%
Internal valve body wear affecting circuit 'D' pressure regulation
15%
Intermittent wiring or connector issue causing erratic readings
10%
Worn servo, clutch pack, or accumulator in circuit 'D'
Diagnostic Steps
1
Check transmission fluid level and condition — discolored or burnt fluid can cause pressure irregularities.
2
Monitor live data for sensor 'D' during a road test, comparing pressure readings to shift commands and throttle input.
3
Verify sensor accuracy by comparing electronic readings to a mechanical pressure gauge at the appropriate test port.
4
Wiggle-test the sensor connector and harness while monitoring live data for signal instability.
5
If sensor reads accurately but actual pressure is off, suspect valve body wear or internal component degradation.
Estimated Repair Cost
$150 - $1,000
Parts + labor, varies by vehicle and location
The TCM has determined that the transmission fluid pressure sensor/switch 'D' circuit output does not correlate with expected values for current operating conditions. The sensor is providing readings but they are outside the expected range during specific shift events or operating modes. This range/...
The most common cause of P0876 (Transmission Fluid Pressure Sensor/Switch "D" Circuit Range/Performance) is: Degraded transmission fluid causing abnormal pressure behavior
Typical repair costs for P0876 range from $150 to $1,000, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Exercise caution while driving. Shift quality may be inconsistent, with potential slipping or flare during gear changes. Avoid towing and schedule repair promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0876 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transmission Hydraulic Pressure Monitoring
Difficulty
Type
Generic (SAE)
Recommended Tools
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