The P080D: Upshift/Skip Shift Solenoid Control Circuit High code indicates that the voltage in the upshift/skip shift solenoid control circuit is higher than expected. This can prevent the solenoid from controlling gear shifts properly. The issue may be caused by a faulty solenoid, wiring problems, or connector issues.
P080D – Quick Overview
| Code | Information |
|---|---|
| Meaning | P080D: Upshift/Skip Shift Solenoid Control Circuit High |
| Is it serious? | Yes, high voltage can prevent proper solenoid function and affect shifting performance. |
| Possible causes | – High voltage in upshift/skip shift solenoid control circuit – Faulty solenoid – Wiring or connector issues |
| How to diagnose? | – Test solenoid control circuit for high voltage – Inspect wiring and connectors – Replace faulty components if needed |
P080D Meaning
The P080D code indicates that the transmission control module (TCM) has detected higher-than-expected voltage in the upshift/skip shift solenoid control circuit. This solenoid manages the skip-shift function, which helps optimize fuel efficiency by skipping certain gears under specific conditions. Excessive voltage may prevent the solenoid from working properly, leading to shifting issues.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for additional transmission-related codes that may give further insight into the issue. | OBD-II Scanner |
| Test Solenoid Control Circuit for High Voltage | Use a multimeter or diagnostic scanner to measure the voltage in the solenoid control circuit. Compare the readings to manufacturer specifications to ensure they are within the correct range. | Multimeter, Diagnostic Scanner |
| Inspect Wiring and Connectors | Inspect the wiring and connectors leading to the solenoid for signs of wear, corrosion, or loose connections that may be causing high voltage. | Flashlight, Multimeter, Safety Gloves |
| Check Battery and Ground Connections | Ensure the battery and ground connections are solid and within proper voltage levels, as poor grounding or over-voltage can cause high readings at the solenoid. | Multimeter, Basic Tools |
| Replace Faulty Solenoid | If the solenoid is found to be faulty, replace it with a new solenoid following manufacturer specifications. | Replacement Parts, Wrenches, Screwdrivers |
| Repair Wiring if Necessary | If damaged or corroded wiring is found, repair or replace it to ensure proper voltage regulation in the solenoid control circuit. | Replacement Wiring, Soldering Tools, Connectors |
| Clear the Code and Test Drive | After repairing or replacing faulty components, clear the code using an OBD-II scanner and test drive the vehicle to confirm the issue is resolved. | OBD-II Scanner |
| Recheck for Codes | After the test drive, rescan the vehicle to ensure the P080D code has not returned. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko