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 2603: Display Diag: RAM (2013-18)
- Check the vehicle battery condition first .
- This navigation DTC sets when a RAM status malfunction in the navigation display unit is detected (the Display icon is red in the System Link).
- Before you troubleshoot, make sure to follow the General Troubleshooting Information - Refer to: How to Troubleshoot the Navigation System (2013-15), or How to Troubleshoot the Navigation System (2016-18) .
- Check any official Honda service website for more service information about the navigation system.
- Problem verification:
Clear the hard error codes - Refer to: How to Troubleshoot the Navigation System (2013-15), or How to Troubleshoot the Navigation System (2016-18) .
- 2. Press the engine start/stop button to select the OFF mode and then select the ON mode.
- 3. Check for hard error codes - Refer to: How to Troubleshoot the Navigation System (2013-15), or How to Troubleshoot the Navigation System (2016-18) .
Is DTC 2603 indicated?
YES
Replace the navigation display unit .
NO
Intermittent failure, the system is OK at this time.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.