P072F

Code

LAND ROVER P — Powertrain

Gear 4 Pressure

Brand: LAND ROVER

Type: P — Powertrain

Views: UK: 18 EN: 41 RU: 27

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Page language: EN

Causes

Low or contaminated automatic transmission fluid (ATF) level or condition
Faulty pressure sensor or transducer associated with gear 4 control
Faulty shift/pressure control solenoid for gear 4
Wiring fault: open, short to ground, short to voltage, or poor connector pin contact
Internal valve body issue (stuck valve, bore wear, contamination)
Hydraulic leak or internal seal damage reducing circuit pressure

Symptoms

Check Engine / Transmission warning light illuminated
Harsh, delayed, or missing 4th gear engagement
Transmission slipping or incorrect gear selection at 4th gear
Limp-home (reduced transmission functionality) mode active
Unusual transmission noises under load
Erratic shift behavior around the 4th gear shift point

What to check

Retrieve freeze frame and full code set with a capable scan tool; note related transmission codes and live data
Check transmission fluid level and condition (color, smell, contamination) per manufacturer procedure
Visually inspect wiring and connectors to transmission solenoids and pressure sensor for damage, corrosion, and secure fit
Monitor live data: commanded vs actual pressure, solenoid status/duty cycle, and related sensor voltages
Perform a basic continuity and resistance check on solenoid/sensor circuits with ignition off per service manual values
Check for TCM firmware updates or known technical service bulletins (TSBs) for this code/model

Signal parameters

Pressure sensor/transducer output voltage: 0–5 V (typical); normal active range often ~0.5–4.5 V — compare to factory spec
Commanded solenoid duty cycle: 0–100% (scanner data)
Actual line/hydraulic pressure: compare measured PSI to factory values when solenoid is commanded (refer to service manual)
Presence/absence of PWM on solenoid control line when solenoid commanded by TCM

Diagnostic algorithm

Read and record fault codes, freeze frame, and live data. Check for multiple transmission-related codes and address those first.
Verify transmission fluid level and condition; correct level if low and retest. Replace fluid if severely contaminated.
Visually inspect wiring harnesses and connectors for the gear 4 solenoid/pressure sensor. Repair any connector damage, bent pins, or corrosion.
With a scan tool, command the gear 4 solenoid and observe scanner data: verify solenoid activation, duty cycle, and any change in reported pressure. Note whether commanded changes produce expected sensor response.
Measure solenoid coil resistance and compare with specification. Check continuity to the TCM and for unintended shorts to ground or battery voltage.
If electrical checks pass but pressure response is incorrect, perform a hydraulic pressure test using a transmission pressure gauge at the appropriate test port(s) while commanding the circuit. Compare values to factory specs.
Inspect and, if required, remove valve body to check for stuck valves, debris, or bore wear in the gear 4 pressure control circuit. Clean or replace valve body components as directed by service procedures.
If valve body and solenoid replace do not correct the issue, consider TCM faults: reflash/update software or test/replace TCM per manufacturer guidance.
After repairs, clear codes and perform road test and live-data verification to ensure correct gear 4 pressure behavior and no recurrence of the code.

Likely causes

Electrical fault in solenoid/pressure sensor circuit (connector corrosion, broken wire)
Clogged or contaminated valve body affecting pressure control
Low ATF level or degraded fluid reducing hydraulic pressure
Faulty pressure control solenoid or sensor

Fault status

⚠️ Status

Transmission control module reports abnormal or out-of-range hydraulic pressure for 4th gear circuit. May cause incorrect shifting, slipping, or limp mode.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.5-4.0 hours

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Manual library for LAND ROVER

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Browse 413 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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P072F — Gear 4 Pressure