P0965high severityPowertrain
Pressure Control Solenoid "B" Control Circuit Range/Performance
on 1999 Toyota Tacoma 2.7L I4 · RWD
What this code means
The pressure control solenoid B is operating outside its expected range. Commanded and actual line pressure do not match.
Symptoms
- Delayed or harsh shifts
- Poor shift quality
- Transmission overheating
Common causes
- Failing pressure control solenoid B
- Degraded transmission fluid
- Wiring resistance or intermittent fault
- Faulty TCM/PCM
Diagnostic steps
- Check fluid level and condition
- Review live pressure data and freeze frame
- Test solenoid response and resistance
- Service fluid or replace solenoid
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0005
Fuel Shutoff Valve A Control Circuit/Open