P1DAB
Vehicle Speed Undetermined
P1DAB is an OBD-II diagnostic trouble code meaning: Vehicle Speed Undetermined. Common causes: speed sensor malfunction, damage to the sensor wiring harness. Estimated repair cost: $17–56.
Symptoms
- Incorrect speedometer readings
- Gear shifting problems
- Disabling cruise control
- Check Engine light comes on
- Unstable engine operation at idle
Causes
- Speed sensor malfunction
- Damage to the sensor wiring harness
- Problems with the ABS system
- Engine control unit malfunction
- Contact corrosion
How to Fix
- Check the speed sensor and its wiring
- Diagnose the ABS system
- Check contacts for corrosion
- Replace the speed sensor if necessary
- Flash or replace the control unit if necessary
Related codes
FAQ
What does the P1DAB code mean?
P1DAB is an OBD-II diagnostic trouble code that indicates: Vehicle Speed Undetermined
What causes a P1DAB error code?
The most common causes of P1DAB include: Speed sensor malfunction; Damage to the sensor wiring harness; Problems with the ABS system; Engine control unit malfunction.
How do I fix a P1DAB diagnostic trouble code?
To fix P1DAB: Check the speed sensor and its wiring. Diagnose the ABS system. Check contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1DAB?
Limited driving only, diagnose soon
How much does it cost to fix P1DAB?
The estimated repair cost for P1DAB is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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