P074E — Unable to Engage Gear 6
The transmission cannot engage gear 6 when it is commanded. The element that should apply for gear 6 — shift solenoid, clutch pack, or band — does not build or hold pressure, so the gear never locks in. Symptoms are slipping, no power transfer in that gear, or a forced limp mode. Causes: a failed shift solenoid, a worn clutch pack, or a valve-body or hydraulic-supply fault on the gear-6 circuit.
General code reference. Confirm the definition and diagnostic procedure for your vehicle's year, model and engine. A stored code alone does not identify a failed part.
Affected components
- Transmission
Possible causes to check
These are possible checks, not a ranked diagnosis. Follow the vehicle manufacturer's test procedure before replacing parts.
- Gear 6 circuit failed
Possible 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
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Check each reference's vehicle and model-year scope. General background links do not establish which fault is most likely on your vehicle.
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.