P1A6D
Starter/Generator Control Module System Voltage Low
P1A6D is an OBD-II diagnostic trouble code meaning: Starter/Generator Control Module System Voltage Low. Common causes: weak or discharged high-voltage battery, dc-dc converter malfunction. Estimated repair cost: $167–556.
Symptoms
- Difficulty starting the engine
- Poor hybrid system performance
- Warning messages on the instrument panel
- Reduced efficiency of regenerative braking
- Intermittent failures of the start-stop system
Causes
- Weak or discharged high-voltage battery
- DC-DC converter malfunction
- Poor contacts or corrosion in the power circuit
- Malfunction of the starter-generator control module
- Problems with the power wiring harness
How to Fix
- Check the voltage of the high-voltage battery
- Diagnose the operation of the DC-DC converter
- Check connections and integrity of the power circuit
- Test the starter-generator control module
- Check the condition of the wiring harness for damage
Related codes
FAQ
What does the P1A6D code mean?
P1A6D is an OBD-II diagnostic trouble code that indicates: Starter/Generator Control Module System Voltage Low
What causes a P1A6D error code?
The most common causes of P1A6D include: Weak or discharged high-voltage battery; DC-DC converter malfunction; Poor contacts or corrosion in the power circuit; Malfunction of the starter-generator control module.
How do I fix a P1A6D diagnostic trouble code?
To fix P1A6D: Check the voltage of the high-voltage battery. Diagnose the operation of the DC-DC converter. Check connections and integrity of the power circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1A6D?
Do not drive — repair immediately
How much does it cost to fix P1A6D?
The estimated repair cost for P1A6D is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat