P1DDE
Ignition Run-Start Input 1-2 Correlation
P1DDE is an OBD-II diagnostic trouble code meaning: Ignition Run-Start Input 1-2 Correlation. Common causes: start sensor malfunction, problems with wiring or contacts. Estimated repair cost: $17–56.
Symptoms
- Difficulty starting the engine
- Unstable engine idling
- Check Engine light comes on
- Reduced engine power
Causes
- Start sensor malfunction
- Problems with wiring or contacts
- Engine control module malfunction
- Short circuit in the circuit
- Corrosion of connectors
How to Fix
- Check the condition of the start sensors
- Inspect the wiring harness for damage
- Check contacts and connectors for oxidation
- Scan the control unit for other errors
- Replace faulty components if necessary
Related codes
FAQ
What does the P1DDE code mean?
P1DDE is an OBD-II diagnostic trouble code that indicates: Ignition Run-Start Input 1-2 Correlation
What causes a P1DDE error code?
The most common causes of P1DDE include: Start sensor malfunction; Problems with wiring or contacts; Engine control module malfunction; Short circuit in the circuit.
How do I fix a P1DDE diagnostic trouble code?
To fix P1DDE: Check the condition of the start sensors. Inspect the wiring harness for damage. Check contacts and connectors for oxidation. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1DDE?
Yes, but get it checked soon
How much does it cost to fix P1DDE?
The estimated repair cost for P1DDE is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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