U0287

Lost Communication With Transmission Fluid Pump Module A

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
The car goes into emergency mode
Gear shifting problems
Reduced vehicle dynamics
Possible jerking when changing gears

Causes

Open or short circuit in the power supply circuit of the pump module
Damage to the wiring harness to the pump module
Transmission fluid pump module malfunction
Connector problems or contact corrosion
Failures in ECU software

How to Fix

Check the integrity of the wiring harness to the pump module
Check voltage and ground in the module power circuit
Inspect connectors for corrosion or damage
Check the functionality of the transmission fluid pump module
If necessary, replace the pump module
Update ECU software if necessary

Related codes

U0286 U0288 U0293