The P0924 DTC gets saved when the computer detects an open circuit related to the gear shift reverse actuator. This is often caused by the electrical problem and should be addressed immediately.
How Serious is the Code?
If there is an electrical problem on the gear shift reverse actuator circuit, a number of transmission problems can arise, like erratic shifting and not be able to get the car into or out of reverse. So obviously a P0924 diagnostic trouble code is pretty serious.
Symptoms of a P0924 include:
- Erratic transmission behavior
- Transmission has difficulty shifting into or out of reverse
- Damaged wiring or connectors
- Failed gearshift reverse actuator
- Damaged gear guide rail
- Damaged shift shaft
- Mechanical issues inside the transmission
- ECU/TCM issues or failure
How to Diagnose the Code?
To figure out what is causing a P0924 OBDII trouble code, your mechanic will need to check all of the electrical wiring, connectors, fuses and relays on this circuit. The gear guide rail and shift shaft will also need to be checked for signs of damage and misalignment. The gearshift reverse actuator itself will also need to be troubleshot, in order to determine if it is at fault. There may also be an internal mechanical failure to blame, or it could be an issue with the ECU or TCM.
What Repairs Will Fix P0924?
- Repair or replace any damage wiring or connectors
- Replace gearshift reverse actuator
- Repair or replace gear guide rail
- Repair or replace shift shaft
- Repair internal mechanical fault(s)
- Reprogram or replace ECU/TCM
- P0920 – Gear Shift Forward Actuator Circuit/Open
- P0921 – Gear Shift Forward Actuator Circuit Range/Performance
- P0922 – Gear Shift Forward Actuator Circuit Low
- P0923 – Gear Shift Forward Actuator Circuit High
- P0925 – Gear Shift Reverse Actuator Circuit Range/Performance
- P0926 – Gear Shift Reverse Actuator Circuit Low
- P0927 – Gear Shift Reverse Actuator Circuit High