Collective code for an electrical fault of pressure control solenoid L that the module does not break down further into open, low or high. No manufacturer documents it publicly; Toyota, the one known user of letter L, has only published the stuck fault P08BA71. Manufacturers that diagnose their solenoids in detail use the specific circuit codes instead, as GM does for solenoid M with P08C8, P08CA and P08CB, each fed by the diagnostic status of the output driver chip. CARB requires a circuit continuity check for every monitored transmission solenoid. The usual culprits are coil, connector or the internal harness; the driver sees the warning light and, depending on the valve, a restricted gear range.
Medium severity. Can I keep driving?Drive as little as possible and gently. If the transmission slips or stays in one gear, go slowly to a repair shop or call for a tow truck.
Symptoms
- Check engine light on
- Restricted gears or fallback gear
Most likely causes
- Solenoid coil open or shorted
- Corroded connector or damaged internal harness
- Faulty output stage in the transmission control module
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: hard
- It can trigger limp mode.
- It affects emissions.
What each character of P08BD means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- 8: Transmission
- BD: Specific fault in that system
Frequently asked questions
Can I keep driving with code P08BD?
Drive as little as possible and gently. If the transmission slips or stays in one gear, go slowly to a repair shop or call for a tow truck.
What causes code P08BD?
The most common causes are: solenoid coil open or shorted; corroded connector or damaged internal harness; faulty output stage in the transmission control module.
Related codes
- P08BAPressure Control Solenoid L
- P08BEPressure Control Solenoid L Intermittent
- P08BFPressure Control Solenoid L Control Circuit/Open
- P08C1Pressure Control Solenoid L Control Circuit Low
- P08C2Pressure Control Solenoid L Control Circuit High
- P08C6Pressure Control Solenoid M Electrical
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.