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P1A4C GMC Code - Hybrid Battery Current Sensor Performance

- Code Popularity: 609 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1A4C GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Hybrid Battery Current Sensor
  • Hybrid Battery Current Sensor harness is open or shorted
  • Hybrid Battery Current Sensor circuit poor electrical connection
⚠ Does your GMC have Safety Recalls? → Check here

How to Fix the DTC P1A4C GMC?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for P1A4C GMC Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1A4C GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1A4C GMC Description

The closed loop principle makes use of a zero-field detector signal which is processed to drive a current through a compensation coil in such a way, that it balances out the magnetic field of the applied current at any time. Thus the compensation current is proportional to the current to be measured. In contrast to common Hall-detectors the patented soft magnetic VAC-probe made from a small strip of amorphous metal VITROVAC(tm) is strictly symmetric with respect to the magnetic field. Therefore it generates no offset contribution to the sensor. Moreover, the symmetry is neither affected by temperature changes or any aging effects. This enables for very high accuracy, nearly zero offset, and excellent stability over temperature and time.
In current sensors based on the closed loop principle the primary current conductor is lead through a magnetic core. The magnetic field of the primary current is concentrated in the magnetic core is detected by a soft-magnetic field probe in an air gap of the core. By means of a current through an additional winding on the core, the magnetic flux of the primary current is compensated. The magnetic flux in the core is held at zero value. The compensation current is proportional, and is an image of the primary current.
The current sensors are based on the closed-loop principle. A soft-magnetic probe is used as field detector of the primary current magnetic field. Compared to standard sensors with Hall-probes, the magnetic probe offers the following application advantages:
- Low offset currents
- Small temperature dependence
- No long term drift of offset current
- Small offset current forces
- Compact size
- Separate electronics available

OBDII Code P1A4C GMC - Hybrid Battery Current Sensor Performance - AutoCodes.com
P1A4C GMC Code - Hybrid Battery Current Sensor Performance

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Code P1A4C GMC comments

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