P0623 OBD-II: Generator Lamp Control Circuit
P0623 Severity
Will P0623 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P0623?
If the Battery voltage gets too low, it will illuminated the Battery/Charging system warning light on the instrument cluster. The light should illuminated for a few seconds when the key is initially turned on. If the warning light fails to light, the engine control module (PCM) will set code P0623.
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OBD II Fault Code
- OBD II P0623
OBD-II Code Powertrain Control Module (PCM) failure is defined as a Generator Lamp Control Circuit
If the Battery voltage gets too low, it will illuminated the Battery/Charging system warning light on the instrument cluster. The light should illuminated for a few seconds when the key is initially turned on. If the warning light fails to light, the engine control module (PCM) will set code P0623.
Common Problems That Trigger the P0623 Code
- Instrument cluster failure
- Powertrain Control Module (PCM) failure
- Warning light bulb failure
- Wiring issue
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