P2721

Pressure Control Solenoid D Control Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Automatic transmission goes into emergency mode
Check Engine light comes on
Hard or delayed gear shifts
Limiting the number of available transfers
Reduced vehicle dynamics

Causes

Open or short circuit in solenoid control circuit
Pressure solenoid D fault
Problems with wiring harness or contacts
Transmission control module (TCM) malfunction
Poor quality or low transmission fluid level

How to Fix

Check the level and condition of the transmission fluid
Diagnose the solenoid control circuit for opens and short circuits
Check resistance and operation of solenoid D
Inspect connectors and wiring harness for damage
Replace solenoid or TCM if necessary

Related codes

P2720 P2722 P2723