What it means
Skip-shift solenoid is electrically intact, but the lockout effect does not match commands — solenoid sticks or coil aged, gearbox interlock cannot be applied or released within the expected time.
At a glance
- Usually lights the check-engine light
How it works
The upshift or skip-shift solenoid operates a gearbox mechanism that permits or blocks a requested gear change. The transmission control module (TCM) monitors whether the solenoid’s response matches its command. P080B sets when the circuit appears electrically intact but the solenoid or mechanism does not perform within the expected range or time.
Common causes
Most likely first.
- Fault in skip-shift solenoid or its circuit
- Mechanical problem in the skip-shift mechanism
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
How to diagnose it
- Record freeze-frame data and scan transmission live data for the skip-shift command and any related codes to see when the response went out of range.
- Check the skip-shift solenoid connector and nearby wiring for loose pins, corrosion, fluid intrusion, or damage that could make the response intermittent.
- Compare the commanded skip-shift state with available solenoid or gear-position feedback during the conditions shown in the freeze frame.
- Test the solenoid coil and its wiring for continuity and shorts, using the manufacturer's specification because this code concerns response as well as the circuit.
- If electrical checks pass, inspect the skip-shift linkage or interlock for binding, wear, or failure to apply and release as commanded.
Common fixes
- Repair a loose, corroded, or damaged solenoid connector or harness.
- Replace a faulty skip-shift solenoid if its electrical or response tests fail.
- Repair or free a sticking skip-shift interlock or linkage.
- Repair a control-module fault only after the solenoid, wiring, and mechanism test correctly.
Can I keep driving?
Drive only if the transmission selects gears predictably; avoid hard acceleration and trips that require reliable shifting. Stop if it slips, shudders severely, or becomes stuck in gear, since continued operation can worsen clutch or gearbox damage.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.