Shift Solenoid B Performance or Stuck Off

Shift solenoid B performance on Honda automatics affects 2nd and 3rd gear operation. The solenoid sticks due to debris or varnish. On the Odyssey, this is a well-documented issue related to the pressure switch and solenoid assembly. Replace the solenoid assembly and do a complete fluid exchange with Honda DW-1 ATF. Check for metal debris in the fluid -- if present, further internal damage is likely. Confirm the exact part for your year and engine with a retailer's fitment lookup or your VIN before ordering - these applications split by engine and build date.

SL2 solenoid performance in Toyota U-series transmissions controls the 2-3 and 3-4 shifts. Performance faults are caused by solenoid wear, valve body bore wear, or low line pressure from a failing pump. Check line pressure first -- if it's low across all ranges, the pump is the issue. If pressure is normal, replace the SL2 solenoid through the valve body. Use only Toyota WS ATF.

Common fix part Toyota WS ATF (4-Quart) View on Amazon→ Compare fitment at PartsGeek→

The RE5R05A 5-speed automatic uses Shift Solenoid B for 2nd-3rd gear transitions. Performance faults are often caused by worn solenoid screens or debris in the valve body. These transmissions are also prone to radiator-cooler cross-contamination (coolant mixing with ATF) -- check for milky pink fluid immediately. If contaminated, the transmission needs a complete teardown and flush.