P2819 — Pressure Control Solenoid "H" Electrical

OBD2 code P2819 flags a problem with the automatic transmission control (pressure control solenoid "H" electrical). Short, gentle driving to a shop is usually possible. Common culprits: faulty transmission speed sensor, valve body wear, wiring or connector faults in the valve body harness.

powertrain (engine/transmission)

Is it safe to drive?

Drive with caution Drive only if the transmission still shifts predictably, and avoid highway speeds. Driving with slipping or limp mode accelerates internal wear — every kilometre can add to the final repair bill.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm P2819 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the automatic transmission control for damage, corrosion, chafing or poor contact.
  4. Subsystem check Check transmission fluid level and condition — dark, burnt fluid points to internal wear.
  5. Subsystem check Read transmission-specific codes and live data (solenoid states, input/output speed) with a capable scanner.
  6. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2819 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P2819 (parts and labor, USD, independent shop rates): Replace a shift solenoid: $300–$800; Transmission fluid service: $150–$350; Transmission rebuild or replacement: $2,500–$5,500; Valve body repair or replacement: $700–$1,500. Overall, fixing P2819 usually costs between $150 and $5,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

What is the most common cause of P2819?

The most common causes are: faulty transmission speed sensor, valve body wear, wiring or connector faults in the valve body harness.

How do I diagnose P2819 myself?

Start with a scan: confirm P2819, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the automatic transmission control, and verify the suspect component against live data before buying parts.

Will P2819 clear itself?

Sometimes P2819 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

Is it safe to drive with P2819?

Drive only if the transmission still shifts predictably, and avoid highway speeds. Driving with slipping or limp mode accelerates internal wear — every kilometre can add to the final repair bill.

How much does it cost to fix P2819?

Replace a shift solenoid — $300–$800; Transmission fluid service — $150–$350; Transmission rebuild or replacement — $2,500–$5,500; Valve body repair or replacement — $700–$1,500. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

What does P2819 mean?

Seeing P2819 on your scanner? The control unit has caught the automatic transmission control operating outside its calibrated window. The formal description is “Pressure Control Solenoid "H" Electrical”, and the code is grouped under powertrain (engine/transmission) faults.

The module monitors this system continuously while driving. When readings fall outside the expected range for a defined number of drive cycles, it stores P2819 and switches on the warning light. Freeze frame data saved with the code shows the exact conditions — rpm, load, temperature, speed — at the moment the fault was detected, which is the best starting point for diagnosis.

What causes P2819?

  • wiring or connector faults in the valve body harness
  • failed shift or pressure control solenoid
  • faulty transmission speed sensor
  • valve body wear
  • internal mechanical wear (clutches, torque converter)
  • low or degraded transmission fluid

Common symptoms of P2819

  • slipping between gears
  • transmission stuck in one gear (limp mode)
  • Check Engine or transmission warning light on
  • harsh or delayed shifting
  • shuddering at highway speed
  • no movement in severe cases

How to diagnose P2819

  1. Connect an OBD2 scanner, confirm P2819 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the automatic transmission control for damage, corrosion, chafing or poor contact.
  4. Check transmission fluid level and condition — dark, burnt fluid points to internal wear.
  5. Read transmission-specific codes and live data (solenoid states, input/output speed) with a capable scanner.
  6. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2819 does not return.

How to fix P2819

Start with the cheapest and most common causes before replacing expensive parts:

  • Replace a shift solenoid — $300–$800
  • Transmission fluid service — $150–$350
  • Transmission rebuild or replacement — $2,500–$5,500
  • Valve body repair or replacement — $700–$1,500

How much does it cost to fix P2819?

Repair cost depends on which component actually failed. Typical scenarios for P2819 (parts and labor, USD, independent shop rates):

  • Replace a shift solenoid: $300–$800
  • Transmission fluid service: $150–$350
  • Transmission rebuild or replacement: $2,500–$5,500
  • Valve body repair or replacement: $700–$1,500

Overall, fixing P2819 usually costs between $150 and $5,500. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P2819?

Drive only if the transmission still shifts predictably, and avoid highway speeds. Driving with slipping or limp mode accelerates internal wear — every kilometre can add to the final repair bill.

Related OBD2 codes