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 01-DC: Transmission Error: Procedure
- CHECK FOR DTC OF OTHER COMPONENTS
- Check if the component shown by sub-code is displayed in the check result of the other components.
- Check if "01-DC" is output for the other components.
- If "01-DC" is output for any other components, check if the same physical address is displayed.RESULT
Result Proceed to "01-DC" is output and the same physical address is displayed A "01-DC" is not output or the same physical address is not displayed B HINT:
For the list of the components shown by sub-codes, refer to the table in the next step.
B → See step 4
A: Go to next step
- Check if the component shown by sub-code is displayed in the check result of the other components.
- IDENTIFY COMPONENT WHICH HAS STORED THIS CODE
- Enter the diagnostic mode.
- Press the preset switch "2" to change to "Detailed Information Mode".
- Identify the component which has stored this code.COMPONENT TABLE
Component Physical address Stereo component amplifier 440 Integration control and panel assembly 1C4 Radio receiver 190 HINT:
- "440 (Stereo component amplifier)" is the component which has stored this code in the example shown in the illustration.
- For details of the DTC display, refer to the "DTC CHECK/CLEAR". Refer to DTC CHECK / CLEAR .
NEXT: Go to next step
- CHECK COMPONENT WHICH HAS STORED THIS CODE
- Select the component which has stored this code.COMPONENT TABLE
Component Proceed to Stereo component amplifier Stereo component amplifier communication error Integration control and panel assembly Integration control and panel assembly communication error Radio receiver Radio receiver communication error
NEXT → END
- Select the component which has stored this code.
- CLEAR DTC
- Clear the DTC. Refer to DTC CHECK / CLEAR
.
HINT:
If "01-DC" is output for only one component, this may not indicate a malfunction.
NEXT: Go to next step
- Clear the DTC. Refer to DTC CHECK / CLEAR
.
- RECHECK DTC
- Recheck the DTC and check if the same trouble code occurs again.
OK
Malfunction disappears.
NG → See step 3
OK → END
- Recheck the DTC and check if the same trouble code occurs again.
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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.
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