Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a small problem with the electricity that helps some of its sensors work. It's like when a toy doesn't have enough battery power to work properly.
The P0652 code indicates that the power supply to one or more sensors in the vehicle is lower than expected, which can affect the sensors' ability to function correctly.
This code is triggered when the Powertrain Control Module (PCM) detects a low voltage condition in the sensor reference voltage circuit 'B'. This circuit provides a consistent voltage to various sensors, and a drop in this voltage can lead to incorrect sensor readings.
• Check Engine Light is on
• Poor engine performance
• Erratic sensor readings
• Faulty sensor
• Damaged wiring or connectors
• Defective PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect wiring and connectors for damage.
• Check the voltage supply to the sensors.
• Repair or replace damaged wiring.
• Replace faulty sensor.
• Replace or reprogram PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly inspect wiring for damage.
• Ensure connectors are secure.
• Perform routine maintenance checks.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have a professional diagnose the issue.
• Avoid driving the vehicle until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on electronic components.
This code has been associated with wiring issues in vehicles manufactured in the early 2000s.
Moderate – This issue should be addressed soon to avoid further complications.
Driving with this code may lead to reduced vehicle performance and safety issues.
• Engine running
• Vehicle in park
The sensor reference voltage circuit is located within the vehicle's wiring harness, typically near the PCM or the affected sensors.
Q: Can I drive with a P0652 code?
A: It's not recommended to drive with this code as it may affect vehicle performance and safety.
Q: How do I clear a P0652 code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is resolved first.
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