OBD Guide
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P1D79

Generator Motor I1 Current Sensor Circuit High Voltage

P1D79 is an OBD-II diagnostic trouble code meaning: Generator Motor I1 Current Sensor Circuit High Voltage. Common causes: generator current sensor i1 malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Battery charging problems
  • Unstable operation of the vehicle's electrical system
  • Generator power reduction

Causes

  • Generator current sensor I1 malfunction
  • Open or short circuit in the sensor circuit
  • Problems with the generator
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the condition of generator current sensor I1
  2. Check the integrity of the wiring and connections in the sensor circuit
  3. Check the functionality of the generator
  4. If necessary, replace the generator current sensor

Related codes

P1D78P1D80P1D81

FAQ

What does the P1D79 code mean?

P1D79 is an OBD-II diagnostic trouble code that indicates: Generator Motor I1 Current Sensor Circuit High Voltage

What causes a P1D79 error code?

The most common causes of P1D79 include: Generator current sensor I1 malfunction; Open or short circuit in the sensor circuit; Problems with the generator; Engine control unit (ECU) malfunction.

How do I fix a P1D79 diagnostic trouble code?

To fix P1D79: Check the condition of generator current sensor I1. Check the integrity of the wiring and connections in the sensor circuit. Check the functionality of the generator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D79?

Yes, but get it checked soon

How much does it cost to fix P1D79?

The estimated repair cost for P1D79 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat