P16A6
Engine Control Module Self-Test Cruise Control Monitoring Fault
P16A6 is an OBD-II diagnostic trouble code meaning: Engine Control Module Self-Test Cruise Control Monitoring Fault. Common causes: problems with wiring to the cruise control module, vehicle speed sensor malfunction. Estimated repair cost: $17–89.
Symptoms
- Cruise control doesn't work
- Check Engine light comes on
- Intermittent cruise control operation
- Engine power limitation
Causes
- Problems with wiring to the cruise control module
- Vehicle speed sensor malfunction
- Problems with the brake light switch
- Cruise control module malfunction
- Software error in the engine ECU
How to Fix
- Check the integrity of the wiring to the cruise control module
- Check the operation of the speed and pedal position sensors
- Test the brake light switch
- Check power and ground of cruise control module
- Update the ECU firmware or replace the cruise control module
Related codes
FAQ
What does the P16A6 code mean?
P16A6 is an OBD-II diagnostic trouble code that indicates: Engine Control Module Self-Test Cruise Control Monitoring Fault
What causes a P16A6 error code?
The most common causes of P16A6 include: Problems with wiring to the cruise control module; Vehicle speed sensor malfunction; Problems with the brake light switch; Cruise control module malfunction.
How do I fix a P16A6 diagnostic trouble code?
To fix P16A6: Check the integrity of the wiring to the cruise control module. Check the operation of the speed and pedal position sensors. Test the brake light switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P16A6?
Yes, but get it checked soon
How much does it cost to fix P16A6?
The estimated repair cost for P16A6 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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