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Home / DTC / P0765 — Malfunction of solenoid D

P0765 — Malfunction of solenoid D

Detailed page for trouble code P0765.

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Code

P0765

LAND ROVER P — Powertrain

Malfunction of solenoid D

Brand: LAND ROVER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed shift solenoid D (internal short/open or stuck)
  • Open, shorted or corroded wiring or connector to solenoid D
  • Poor ground or blown fuse/relay feeding the transmission solenoids
  • Low, dirty, or incorrect transmission fluid causing solenoid sticking
  • Faulty transmission control module (TCM) or software issue
  • Valve body hydraulic fault (blocked port, stuck valve) or mechanical damage

Symptoms

  • MIL (Check Engine) illuminated
  • Harsh, delayed or erratic shifting
  • Transmission stuck in one gear or limited/“limp” mode
  • Loss of drive or poor acceleration
  • Transmission fluid contamination or low level observed

What to check

  • Read freeze frame and live data with a capable scan tool; confirm P0765 and related codes
  • Check transmission fluid level, condition and smell (burnt fluid)
  • Visually inspect solenoid D connector and wiring for damage, corrosion, or chafing
  • Measure resistance of solenoid D and compare to manufacturer spec
  • Check voltage supply and ground at the solenoid connector with ignition on
  • Use scan tool to command/activate solenoid D and observe response (pressure/shift changes)

Signal parameters

  • Solenoid coil resistance: consult Land Rover specification (typical range often ~5–40 Ω depending on design)
  • Operating control: switched/PWM from TCM (0–12 V pulsed); duty cycle varies with commanded pressure
  • Expected current draw: manufacturer-specified; abnormally high or zero indicates short/open
  • Activation response: commanding solenoid should change hydraulic/shift behavior as seen in scan tool data or during road test

Diagnostic algorithm

  1. Verify the code: record freeze-frame and all transmission-related codes; clear codes and attempt to replicate under same conditions.
  2. Fluid check: verify correct fluid type, level and condition; correct or replace fluid if contaminated or low.
  3. Visual inspection: park on level ground, key off, inspect solenoid D connector, wiring harness, pins and grounds for corrosion, damage or poor connections.
  4. Resistance test: with ignition off, disconnect connector and measure solenoid D coil resistance; compare to spec. Replace solenoid if out of range.
  5. Power/ground test: back-probe connector with key on (engine off) to verify switched supply and ground continuity to TCM; check for short to power/ground.
  6. Activation test: use bi-directional scan tool to command solenoid D; observe current draw and vehicle response (shift/pressure). If commanded and no response, suspect wiring or solenoid.
  7. Isolation swap: if possible and same type, swap solenoid D with another solenoid circuit and confirm if code follows the component.
  8. Valve body/hydraulic check: if electrical tests pass, inspect valve body and hydraulic circuits for contamination or stuck valves; consider valve body/solenoid replacement.
  9. TCM/software: if all hardware and wiring are good, check TCM for faults, reprogram/update software per manufacturer instructions or replace TCM if proven faulty.
  10. Final verification: repair/replace as indicated, clear codes and road test to confirm proper operation and that code does not return.
  11. Safety note: take normal workshop safety precautions, support vehicle securely when performing drive/road tests, and avoid shorting circuits when probing connectors.

Likely causes

  • Intermittent or permanent open/short in solenoid D circuit
  • Contaminated transmission fluid causing solenoid sticking
  • Connector corrosion or pin damage at the solenoid harness
  • Solenoid internal failure

Fault status

⚠️ Status
TCM reports malfunction with Shift Solenoid D circuit. MIL may be on and the transmission may operate in limited mode. Electrical fault, solenoid failure, wiring or hydraulic issue should be investigated.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1–3 hours

Similar codes

P0750 P0755 P0760 P0761 P0766 P0700
413

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