P282B

Code

Generic P — Powertrain

Pressure Control Solenoid K Electrical

Brand: Generic

Type: P — Powertrain

Views: UK: 24 EN: 24 RU: 21

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Open circuit in solenoid K wiring (broken wire, open pin)
Short to battery voltage or short to ground in the solenoid circuit
Corroded, loose or damaged connector/terminal at the solenoid or TCM/PCM
Failed pressure control solenoid K (coil short or open)
Blown fuse or poor power/ground to transmission control module
Internal TCM/PCM driver failure

Symptoms

Check Engine / Transmission warning lamp illuminated
Harsh, delayed or erratic shifting
Transmission may go into limp/limited mode
Loss of torque converter lock-up or poor locking behavior
Fluid pressure-related symptoms: slipping, flare on shift, abnormal shift timing

What to check

Scan for stored and pending DTCs and view freeze frame / live data
Record solenoid K commanded state and actual response (duty cycle, on/off) with a scan tool
Inspect wiring harness and connector for damage, corrosion, or oil intrusion
Verify power and ground at the solenoid connector with key on (engine off)
Measure solenoid coil resistance and compare with manufacturer's spec
Perform a wiggle test on wiring while monitoring for code return or signal change

Signal parameters

Signal type: switched power/ground or PWM (pulse-width modulated) control depending on vehicle
Expected command: 0–100% duty cycle when PWM-controlled (varies by vehicle)
Typical PWM frequency range: tens to a few hundred Hz (check factory spec)
Coil electrical param: low-ohm coil (measure resistance against factory spec)
Voltage when commanded ON: near battery voltage on power-switched type, or pulsed voltage on PWM type
Current draw increases when solenoid is energized (monitor with clamp meter if available)

Diagnostic algorithm

Retrieve all transmission and engine DTCs; record freeze-frame and live data. Note other transmission solenoid codes.
Visually inspect the solenoid K connector and harness for damage, corrosion, bent pins, fluid contamination, or poor sealing. Repair as needed.
With ignition ON (engine off), backprobe the connector: verify reference power (battery voltage) and good ground presence. Repair power/ground faults first.
Measure solenoid coil resistance at the connector (or after unplugging). Compare to manufacturer spec. Replace solenoid if open or shorted.
Use a scan tool to command solenoid K ON/OFF or vary duty while monitoring transmission pressure/live data. Observe whether commanded changes produce expected pressure/response.
If solenoid doesn’t respond electrically but wiring shows correct power/ground, perform a continuity check from solenoid connector to TCM connector to locate opens/shorts.
Check for shorts to battery or ground using an ohmmeter; repair any shorted wiring. Perform a wiggle test to reproduce intermittent faults.
If wiring and solenoid test good, inspect fuses/relays and verify TCM power/ground and connector pins. If TCM driver output is suspected, consult manufacturer procedure for TCM bench tests or replacement.
After repairs or replacement of solenoid/harness/TCM, clear codes and road test while monitoring system. Verify no return of P282B and that shift/pressure behavior is normal.
If problem persists consult vehicle-specific service manual for advanced diagnostics (oscilloscope traces of PWM, manufacturer test harness, or known technical service bulletins).

Likely causes

Damaged harness or chafed wire to the solenoid
Corroded connector at the transmission solenoid pack
Solenoid coil open or shorted from wear/contamination
Blown fuse or weak ground connection at transmission case
Faulty TCM output driver (less common)

Fault status

⚠️ Status

TCM detected an electrical fault in the Pressure Control Solenoid K circuit (open, short, or abnormal operation). Check wiring, connectors, power/ground, solenoid coil, and TCM output driver.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-3.0 hours