The P0920: Gear Shift Forward Actuator Circuit/Open refers to an open circuit detected in the gear shift forward actuator circuit. This can prevent the gear shift forward actuator from engaging properly, leading to shifting problems when moving the vehicle forward.
P0920 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0920: Gear Shift Forward Actuator Circuit/Open |
| Is it serious? | Yes, an open circuit can prevent forward gear engagement, causing drivability issues. |
| Possible causes | – Open circuit in the gear shift forward actuator circuit – Faulty gear shift forward actuator – Wiring or connector issues |
| How to diagnose? | – Check the gear shift forward actuator circuit for continuity – Inspect wiring and connectors – Replace the gear shift forward actuator if necessary |
P0920 Meaning
The P0920 code indicates that there is an open circuit in the gear shift forward actuator, which is responsible for selecting forward gears in the transmission. An open circuit may result from broken or damaged wiring, faulty connectors, or a malfunctioning actuator. This can prevent the vehicle from shifting into forward gears properly.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for other related codes that may give further insight into the issue. | OBD-II Scanner |
| Inspect Wiring and Connectors | Visually inspect the wiring and connectors related to the gear shift forward actuator for signs of damage, corrosion, or disconnections. | Flashlight, Multimeter |
| Check the Gear Shift Forward Actuator Circuit for Continuity | Use a multimeter to check for continuity in the gear shift forward actuator circuit, ensuring no open circuit is present. | Multimeter, Vehicle Manual |
| Test the Gear Shift Forward Actuator | Test the gear shift forward actuator for proper function, replacing it if necessary. | Diagnostic Tool, Multimeter |
| Replace Faulty Components | Replace any damaged wiring, connectors, or the gear shift forward actuator if needed. | Replacement parts, Tools |
| Clear Code and Test Drive | After repairs, clear the code and take the vehicle for a test drive to verify that the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the vehicle after the test drive to ensure that the P0920 code does not return. | OBD-II Scanner |
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