Engine-Codes - Generic - P2062

P2062 Code - Alternator Serial Interface Generator Or Regulator Faulty

- Code Popularity: 14,412 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P2062?

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
  • Faulty Alternator
  • Alternator harness is open or shorted
  • Alternator circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC P2062?

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 P2062 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)

What Does the P2062 Code Mean?

This fault code is stored in a control module when the charging system control does not perform as expected. In order to create a more efficient charging system manufacturers are now using an intelligent charging system. A control module sends a signal to the alternator depending on engine load and operating conditions. This signal is responsible for altering the alternator field current. Manufacturers can use a varying PWM, or pulse width modulation, to command and receive feedback from the alternator. A larger current flow through the field winding will result in a higher charging output voltage. A reduced current flow through the field winding will result in a lower charging output voltage. Some manufacturers now use LIN, or local inter-connection network, communication to control the alternator output voltage. Both LIN bus and PWM control can be tested using an oscilloscope. Some vehicle manufacturers offer a tool that can be used to control the alternator disconnected for the control module which is responsible for controlling it. This allows for accurate diagnosis.

P2062 Code - Alternator Serial Interface Generator Or Regulator Faulty

Need more Information on the Code?

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Code P2062 Information for Specific Makes

  • P2062 Audi Reductant/Regeneration Supply Control Circuit/Open
  • P2062 BMW Reductant/Regeneration Supply Control Circuit/Open
  • P2062 Dodge Reductant/Regeneration Supply Control Circuit/Open
  • P2062 Mercedes-Benz Alternator Serial Interface Generator Or Regulator Faulty
  • P2062 Volkswagen Reductant/Regeneration Supply Control Circuit/Open

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