Jump to content
View in the app

A better way to browse. Learn more.

Mopar1973Man.Com LLC

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

P0622 GENERATOR FIELD NOT SWITCHING PROPERLY

When Monitored and Set Condition:

When Monitored: When the ignition is on.
Set Condition: The feedback signal does not match the commanded signal for the voltage regulator.

POSSIBLE CAUSES

  • GENERATOR
  • OPEN DRIVER CIRCUIT
  • GEN SOURCE SHORTED TO BATTERY NEGATIVE
  • (K20) FIELD DRIVER CIRCUIT SHORTED TO VOLTAGE
  • GEN SOURCE OPEN
  • ECM

DIAGNOSTIC PROCEDURE

  1. Turn the ignition off. Disconnect the Generator field harness connector. Check connectors - Clean/repair as necessary. Measure the resistance between the generator field terminals. Is the resistance between.5 and 15 Ohms?
    Yes --> Go To 2
    No --> Replace the Generator.
  2. Disconnect the ECM harness connectors. Check connectors - Clean/repair as necessary. Measure the resistance of the generator driver wire between the generator harness connector and the ECM harness connector. Is the resistance less than 10 ohms.
    Yes --> Go To 3
    No --> Repair the open driver circuit.
  3. Measure the resistance of the generator source circuit between the generator harness connector and battery negative. Is the resistance less than 10 ohms.
    Yes --> Repair the Gen source shorted to Battery negative.
    No --> Go To 4
  4. Measure the voltage between the (K20) generator field driver circuit in the generator harness connector and battery negative. Is the voltage greater than 1 volt?
    Yes --> Repair the (K20) Generator field driver circuit shorted to voltage.
    No --> Go To 5
  5. Measure voltage of the Gen source circuit at the generator harness connector. Is voltage within one volt of battery voltage?
    Yes --> Replace the ECM.
    No --> Repair the open or high resistance of Gen source circuit.

User Feedback

There are no reviews to display.

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.