P1D78
Generator Motor I1 Current Sensor Circuit Low Voltage
P1D78 is an OBD-II diagnostic trouble code meaning: Generator Motor I1 Current Sensor Circuit Low Voltage. Common causes: generator current sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Battery charging problems
- Unstable operation of electrical equipment
- Reduced generator performance
- Possible problems starting the engine
Causes
- Generator current sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Problems with the generator control module
- Corroded contacts or damaged wiring
How to Fix
- Check the condition of the sensor wiring and connectors
- Check the voltage at the generator current sensor
- Test the generator current sensor
- Check the operation of the generator control module
- If necessary, replace the generator current sensor
Related codes
FAQ
What does the P1D78 code mean?
P1D78 is an OBD-II diagnostic trouble code that indicates: Generator Motor I1 Current Sensor Circuit Low Voltage
What causes a P1D78 error code?
The most common causes of P1D78 include: Generator current sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Problems with the generator control module.
How do I fix a P1D78 diagnostic trouble code?
To fix P1D78: Check the condition of the sensor wiring and connectors. Check the voltage at the generator current sensor. Test the generator current sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1D78?
Yes, but get it checked soon
How much does it cost to fix P1D78?
The estimated repair cost for P1D78 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat