Engine-Codes - GMC - P0562 GMC

P0562 GMC Code - System Voltage Low

- Code Popularity: 9,775 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P0562 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.
  • Low battery charge
  • Battery defective
  • Loose or missing alternator drive belt
  • Faulty alternator
  • Open or short system voltage circuit

Code Tech Notes

Start by recharging or replacing the battery.

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How to Fix the DTC P0562 GMC?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0562 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Slow engine start
  • Low battery power

What Does the P0562 GMC Code Mean?

The Powertrain Control Module (PCM) continuously monitors the system voltage. The system voltage information is taken from the PCM's ignition feed circuits. Voltages below 8.0 volts or above 17.1 volts cause improper system operation and/or component damage. If the system voltage is low the PCM raises the idle speed in order to increase the generator output. The PCM disables most outputs to protect the hardware if the system voltage is high. A scan tool may not display data if system voltage is outside this range. The Diagnostic Trouble Code (DTC) will be set if the PCM detects a too low electrical system voltage level.

P0562 GMC Code - System Voltage Low

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