P0964
PowertrainTransmission Solenoidhigh severityPressure Control Solenoid "B" Control Circuit/Open
What P0964 Means
The transmission pressure control solenoid B circuit is open or has lost continuity. This disrupts proper hydraulic pressure control in the transmission.
Symptoms
- Harsh or erratic shifting
- Transmission slipping
- Check engine light on
Common Causes
- Faulty pressure control solenoid B
- Open or broken wiring
- Corroded transmission connector
- Faulty TCM/PCM
Diagnostic Steps
- Scan for transmission trouble codes
- Inspect solenoid connector and wiring
- Measure solenoid resistance and continuity
- Replace solenoid if faulty
🔌 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 →
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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
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