Engine-Codes - Mitsubishi - P0622 MITSUBISHI

P0622 MITSUBISHI - Generator FR Terminal Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0622 MITSUBISHI Possible Causes

  • Battery charge
  • Faulty Generator
  • Generator harness is open or shorted
  • Generator circuit poor electrical connection
  • Engine Control Module (ECM) controlled generator
  • Faulty ECM

How is the P0622 MITSUBISHI code repair?

Start by checking 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.

Tech Notes

If the battery is OK then the alternator is more than likely the problem.

What is the cost to diagnose the P0622 MITSUBISHI code

Labor: 1.0

The cost to diagnose the P0622 MITSUBISHI code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

P0622 MITSUBISHI Meaning

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.

More Information

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