Code
P2717
Generic
P — Powertrain
Pressure Control Solenoid D Intermittent
Views:
UK: 13
EN: 25
RU: 18
AI status
Completed
Completed
100%
Causes
- Intermittent electrical connection at the solenoid or connector
- Damaged or chafed wiring harness (open, short, or high resistance)
- Corroded or bent connector pins
- Faulty pressure control solenoid D (internal intermittent)
- Contaminated transmission fluid or debris causing valve/solenoid sticking
- Faulty PCM/TCM (rare)
Symptoms
- Check Engine / Transmission MIL illuminated (intermittent)
- Harsh, delayed, or erratic shifts
- Transmission may go into limp mode intermittently
- Occasional slipping or gear hunting under load
- No symptoms when code not active or when solenoid is operating normally
What to check
- Read freeze frame and live data with a capable scanner; note when code sets and commanded vs reported solenoid status
- Perform a visual inspection of the transmission connector and wiring for damage, corrosion, or pin distortion
- Wiggle test wiring and connector while watching live data to try to reproduce the code
- Measure solenoid coil resistance at the connector (unplugged) and compare to spec
- Check for proper battery voltage at the solenoid power feed and good ground
- Check transmission fluid level and condition (metal particles, contamination)
Signal parameters
- Typical solenoid coil resistance (varies by vehicle): ~8–30 ohms (measure with circuit disconnected)
- Nominal supply voltage at harness: battery voltage ~11–14 V
- Drive signal: PWM duty cycle 0–100% from PCM/TCM; frequency commonly 50–500 Hz (manufacturer dependent)
- Intermittent faults may show open-circuit (infinite ohms) or short to ground/power (near 0 ohms) on resistance check
- Scope waveform: clean PWM when commanded; look for dropouts, noise, or missing pulses when intermittent
Diagnostic algorithm
- Retrieve freeze frame, readiness, and all related codes. Note conditions when the code occurred (temp, load, speed).
- Clear the code and attempt to reproduce. Use a scan tool to monitor PCS D commanded duty and any feedback while driving or using active tests.
- Visually inspect the transmission connector, pins and harness for corrosion, bent pins, or contamination. Repair or clean as needed.
- With ignition off, disconnect the solenoid connector and measure coil resistance to ground and between terminals. Compare to spec. Look for intermittent changes while wiggling harness.
- Backprobe the connector with the system powered and command the solenoid ON/OFF (active test) while monitoring voltage and duty cycle. Verify consistent PWM and battery feed. Use a scope if available to detect momentary dropouts.
- Perform a continuity check from the solenoid connector to the PCM connector to rule out intermittent opens; inspect for high-resistance joints or grounds.
- If wiring and connectors are good but intermittent persists, consider bench-testing or replacing the solenoid (or solenoid pack) and re-testing.
- If replacement does not clear the intermittent event, inspect valve body and fluid for contamination; consider transmission fluid service and valve body inspection.
- If all wiring, solenoid and hydraulic checks are good, consider PCM/TCM driver fault — verify with manufacturer diagnostics before replacing control module.
- After repairs, clear codes and perform a thorough road test and re-scan to confirm the issue is resolved.
Likely causes
- Loose or corroded connector at the solenoid pack
- Wire damage inside harness near transmission or chassis flex points
- Intermittent internal solenoid coil failure
- Contaminated or degraded transmission fluid causing valve sticking
- Intermittent PCM driver for the solenoid
Fault status
Status
P2717 — Pressure Control Solenoid D Intermittent: Transmission control detected intermittent operation of PCS D (electrical or hydraulic fault).
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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