Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer can't talk to the 'check engine' light, so it might not turn on when there's a problem.
The P0650 code indicates an issue with the circuit that controls the Malfunction Indicator Lamp (MIL), commonly known as the 'check engine' light.
The P0650 code is triggered when the Engine Control Module (ECM) detects an open or malfunction in the circuit controlling the MIL. This could prevent the MIL from illuminating when a fault is detected, potentially masking other issues.
• Check engine light not illuminating
• No warning of engine issues
• Potential other codes stored
• Faulty MIL bulb or LED
• Open or shorted MIL control circuit
• Faulty ECM
MIL: Malfunction Indicator Lamp
ECM: Engine Control Module
• Check MIL bulb or LED for functionality
• Inspect wiring and connectors for damage
• Test the ECM for proper operation
• Replace faulty MIL bulb or LED
• Repair or replace damaged wiring or connectors
• Replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly check the MIL for functionality
• Perform routine maintenance checks
• Inspect wiring for wear and tear
Electrical Circuit Issue
• Check if the MIL lights up when starting the car
• Consult a professional if the MIL does not illuminate
• Avoid ignoring the issue as it can mask other problems
Check your vehicle's warranty for coverage on electrical components.
The P0650 code has been documented in various vehicle models, often related to aging or damaged wiring.
Moderate – While the vehicle may operate normally, other issues may go unnoticed.
Driving with a non-functional MIL can prevent you from knowing about other critical issues, potentially leading to safety hazards.
• Vehicle ignition in the 'on' position
• Engine running and monitoring MIL operation
The MIL is typically located in the instrument cluster on the dashboard.
Q: What happens if I ignore the P0650 code?
A: Ignoring this code can lead to undetected engine problems, as the MIL won't alert you to new issues.
Q: Can I drive my car with a P0650 code?
A: You can drive the car, but it's not recommended as you won't be alerted to new problems.
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