The DTC P0924 is recorded when the computer detects an open circuit related to the gear shift reverse actuator. This is often caused by an electrical issue and should be resolved immediately.
How severe is the code?
If there is an electrical problem in the gear shift reverse actuator circuit, several transmission issues may occur, such as erratic shifting and the inability to engage or disengage reverse gear. Therefore, a diagnostic code P0924 is obviously quite serious.
Symptoms
Symptoms of a P0924 include:
- Erratic transmission behavior
- Difficulty shifting into or out of reverse gear
Causes
- Damaged wiring or connectors
- Faulty reverse actuator
- Damaged gear guide rail
- Damaged shift shaft
- Internal mechanical issues within the transmission
- ECU/TCM problems or failure
How to diagnose the code?
To determine what is causing an OBDII fault code P0924, your mechanic will need to check all electrical wiring, connectors, fuses, and relays in this circuit. The gear guide rail and shift shaft should also be inspected for signs of damage and misalignment. The gear shift reverse actuator itself will need troubleshooting to determine if it has failed. There could also be an internal mechanical failure to blame, or it might be an issue with the ECU or TCM.
What repairs will fix P0924?
- Repair or replace any damaged wiring or connectors
- Replace the gear shift reverse actuator
- Repair or replace the gear guide rail
- Repair or replace the shift shaft
- Fix internal mechanical defects
- Reprogram or replace the ECU/TCM
Related codes
P0920 – Forward shift actuator circuit/open
P0921 – Forward shift actuator circuit range/performance
P0922 – Forward shift actuator circuit low
P0923 – Forward shift 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