P0773 — Shift Solenoid E Electrical

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

Read the code and freeze frame Connect an OBD2 scanner, confirm P0773 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
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.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the automatic transmission control for damage, corrosion, chafing or poor contact.
Subsystem check Check transmission fluid level and condition — dark, burnt fluid points to internal wear.
Subsystem check Read transmission-specific codes and live data (solenoid states, input/output speed) with a capable scanner.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P0773 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P0773 (parts and labor, USD, independent shop rates): Replace a shift solenoid: $300–$800; Transmission rebuild or replacement: $2,500–$5,500; Transmission fluid service: $150–$350; Valve body repair or replacement: $700–$1,500. Overall, fixing P0773 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 are the symptoms of P0773?

Drivers most often notice: no movement in severe cases, shuddering at highway speed, Check Engine or transmission warning light on, harsh or delayed shifting.

What does OBD2 code P0773 mean?

Shift Solenoid E Electrical (P0773): a powertrain (engine/transmission) fault affecting the automatic transmission control. Short, gentle driving to a shop is usually possible. Most often caused by internal mechanical wear (clutches, torque converter), wiring or connector faults in the valve body harness, failed shift or pressure control solenoid.

How much does it cost to fix P0773?

Replace a shift solenoid — $300–$800; Transmission rebuild or replacement — $2,500–$5,500; Transmission fluid service — $150–$350; 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.

Is it safe to drive with P0773?

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.

Will P0773 clear itself?

Sometimes P0773 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.

When your vehicle's engine control unit detects a problem with the automatic transmission's shift solenoid circuit, it logs OBD2 code P0773. The official description for this trouble code is "Shift Solenoid E Electrical," which falls under the powertrain category since it involves both the engine and transmission systems working together. This code specifically indicates that the transmission control module has identified an electrical fault within the shift solenoid E circuit, preventing proper gear changes.

The transmission control module relies on a network of solenoid valves to direct hydraulic pressure to the correct clutches and bands for each gear. When the module sends a command to shift solenoid E and the electrical response does not match expectations, the system recognizes this discrepancy and triggers P0773. Importantly, the engine control unit does not set this code based on a single anomalous reading. Instead, it requires the fault condition to occur repeatedly under specific driving conditions before illuminating the check engine light or transmission warning indicator. This threshold helps prevent false alarms from temporary electrical glitches.

One of the most useful tools embedded in the diagnostic system is the freeze frame data recorded alongside P0773. This snapshot captures engine load, RPM, coolant temperature, vehicle speed, and other sensor readings at the exact moment the fault occurred. When you review this data, it reveals precisely what conditions triggered the code, allowing you to reproduce those circumstances during testing and narrow down the root cause efficiently.

Common Symptoms of P0773

The symptoms associated with code P0773 vary depending on how severely the solenoid circuit is affected. Recognizing these signs helps you understand when professional diagnosis becomes necessary.

The transmission may fail to engage any gear, leaving the vehicle unable to move in severe cases
Drivers often report a shuddering or vibration sensation, particularly at highway speeds
Both the check engine light and transmission warning indicator may illuminate simultaneously
Gear shifts feel harsh or noticeably delayed compared to normal operation
The transmission may enter limp mode, remaining stuck in a single gear with severely limited performance

Typical Causes

Several underlying issues can trigger the shift solenoid E electrical fault. Understanding these causes helps prioritize the diagnostic process from most to least likely.

A failed or worn shift solenoid represents the most common source of P0773
Wiring harness damage, including chafing, corrosion, or loose connectors in the valve body circuit
Low transmission fluid level or fluid that has become degraded and lost its hydraulic properties
Valve body wear affecting the passages or solenoid mounting surfaces
Internal mechanical problems such as worn clutches or torque converter issues
A faulty transmission speed sensor providing incorrect data to the control module

Diagnostic Procedure

Effective diagnosis of P0773 requires a systematic approach that rules out simpler causes before pursuing complex repairs. Each step builds on the previous findings to isolate the exact component requiring service.

Connect an OBD2 scanner to the vehicle and confirm that P0773 is stored in the transmission control module. Save the freeze frame data, which documents the engine operating conditions when the fault first appeared.
Scan for any additional trouble codes that may provide context. Review manufacturer technical service bulletins for your specific make and model, as many transmission issues have documented factory solutions or software calibrations.
Perform a thorough visual inspection of the transmission wiring harness and electrical connectors, checking for damaged insulation, corrosion buildup, or loose terminal connections.
Inspect the transmission fluid level and condition. Burnt-smelling, darkened, or low fluid indicates internal wear that may be contributing to the electrical fault.
Use a capable diagnostic scanner to access transmission-specific data, including solenoid status, input and output shaft speeds, and pressure readings during gear changes.
Clear the code and perform a complete drive cycle that reproduces the conditions captured in the freeze frame. Verify whether P0773 returns or remains cleared.

Repair Options and Costs

Repair costs for P0773 span a wide range depending on which component actually failed. Starting with the least expensive and most probable causes prevents unnecessary spending on major repairs.

Shift solenoid replacement typically costs between $300 and $800 including parts and labor
A complete transmission rebuild or replacement generally ranges from $2,500 to $5,500
Transmission fluid service including flush and filter replacement runs approximately $150 to $350
Valve body repair or complete replacement usually costs between $700 and $1,500

The total expense to resolve code P0773 can vary significantly based on your vehicle and the underlying cause. Most situations fall between $150 for a simple fluid service and $5,500 for a full transmission replacement. Investing in an accurate diagnosis before purchasing parts is essential—the most expensive scenario is rarely the first place to look, and skipping diagnostic steps often leads to unnecessary repairs.

Can You Drive with P0773?

The safety of continuing to drive with this code active depends on how the transmission behaves. If the vehicle still shifts through gears relatively smoothly and the transmission has not entered limp mode, short-distance driving on lower-speed roads may be acceptable while arranging repairs. However, avoiding highway speeds and heavy acceleration reduces stress on the transmission during this period.

When the transmission exhibits slipping, harsh engagement, or has already reverted to limp mode with only one or two gears available, continued operation risks accelerating internal damage. Every additional mile driven under these conditions can increase the final repair cost and may leave you stranded if the transmission fails completely. Have the vehicle inspected as soon as reasonably possible to determine whether immediate repair is necessary.