Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC C1137: Reverse Gear Switch
2021 Ford Edge SE, 4WDSECTION DTC C1137: Reverse Gear Switch
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Failure | Action |
|---|---|
| 23 | This DTC sets if the reverse gear message from the PCM shows "not engaged" when other sensor input shows the vehicle is moving in reverse. RETRIEVE and DIAGNOSE all PCM DTCs. REFER to the appropriate Electronic Engine Controls article. If the diagnostic scan tool cannot communicate with the PCM, REFER to the Module Communications Network article. If there are no DTCs in the PCM, the condition may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PCM electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary. |
| 24 | This DTC sets if the reverse gear message from the PCM shows "engaged" when other sensor input shows the vehicle is moving in reverse. RETRIEVE and DIAGNOSE all PCM DTCs. REFER to the appropriate Electronic Engine Controls article. If the diagnostic scan tool cannot communicate with the PCM, REFER to the Module Communications Network article. If there are no DTCs in the PCM, the condition may be caused by an intermittent concern. SET the ignition to OFF. DISCONNECT and INSPECT all PCM electrical connectors for corrosion, bent pins, pushed-out pins and spread terminals. REPAIR as necessary. |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.