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AutoCodes - Generic - P065A

P065A Code - Generator System Performance

- Code Popularity: 15,699 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
Table of contents
By - Updated May 04, 2019
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|Code P065A Possible Causes

  • Faulty Generator (Alternator)
  • Generator harness is open or shorted
  • Generator circuit poor electrical connection

|How do I Fix the Code P065A?

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's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code P065A?

Labor: 1.0

The cost of diagnosing the P065A code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code P065A Possible Symptoms?

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

|Code P065A Description

The Engine Control Module (ECM) uses the generator turn ON signal circuit to control the generator. A high side driver within the ECM allows the ECM to turn the generator ON and OFF. When Generator operation is desired, the ECM sends a 5 volt signal to the voltage regulator via the generator turn on signal circuit. This causes the voltage regulator to begin controlling the generator field circuit. Once the Generator is enabled by the ECM, the voltage regulator controls generator output independently of the ECM. Under certain operating conditions, the ECM can turn Off the generator by turning Off the 5 volt signal on the generator turn on signal circuit. The ECM sets the OBDII when the generator does not respond to the ECM ON signal.
OBDII Code P065A - Generator System Performance -
P065A Code - Generator System Performance

|Need More Information on the P065A Code?

Need more information on how to fix the P065A code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the P065A Code?

Get the P065A code diagnosed by a professional: Find a repair shop in your area

|Code P065A comments

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