Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is getting too much electricity from a sensor. It's like when you plug in a lamp and it gets too much power, making the bulb too bright.
This code indicates that the voltage in the sensor reference circuit B is higher than expected.
The Powertrain Control Module (PCM) monitors the reference voltage sent to various sensors. If the voltage in the Sensor Reference Voltage B circuit exceeds the expected range, it triggers the P0653 code. This could affect the performance of sensors relying on this reference voltage.
• Check Engine Light is on
• Poor engine performance
• Erratic sensor readings
• Faulty sensor
• Wiring issues such as short to voltage
• Defective PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect wiring and connectors for damage or corrosion.
• Test the voltage at the sensor and PCM.
• Repair or replace damaged wiring.
• Replace faulty sensor.
• Replace or reprogram the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wiring diagram
$100 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect wiring for damage.
• Ensure sensors are properly maintained.
• Avoid exposure to extreme conditions that can damage electrical components.
Sensor Issue
• Avoid driving long distances until the issue is resolved.
• Consult with a professional mechanic for an accurate diagnosis.
Check the vehicle's warranty for coverage on electrical components.
This code has been associated with wiring issues and sensor failures in various models over the years.
Moderate – It should be addressed soon to prevent further issues.
Driving with a faulty sensor can lead to poor performance and potential safety hazards.
• Vehicle at operating temperature
• Engine running
The affected sensor is usually located on the engine block or intake manifold.
Q: Can I drive with a P0653 code?
A: It's possible, but not recommended as it may affect engine performance.
Q: How do I clear a P0653 code?
A: After repairs, use an OBD-II scanner to clear the code from the PCM.
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