What is P0652 : Engine Error code Causes Explained
This tutorial covers the P0652 engine trouble code, which indicates a sensor reference voltage circuit issue. This error usually indicates a problem with the engine control module (ECM) or a voltage-incorrect sensor, compromising engine performance.
How to Identify a DTCs Number
When diagnosing an engine error related to DTC P0652, it’s important to understand that the Diagnostic Trouble Code (DTC) P0652 specifically refers to an issue with the Sensor Reference Voltage “A” Circuit.
The trouble codes (DTCs) are the trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
The P0652 error will typically show up on the vehicle’s onboard diagnostics system (OBD-II) when you use a diagnostic scan tool.
Causes of P0652 Code:
- Faulty sensor:
Damaged or failing sensor within the “B” circuit, which could be any number of sensors
depending on the vehicle - Wiring issues:
Damaged or frayed wires within the “B” circuit - Faulty PCM:
The PCM may be unable to process the reference voltage
Risk Level of P0652 Error Code:
The “Medium Risk Level” designation appears because while the P0652 code is a sign of a fault in the engine’s voltage reference system, it does not necessarily indicate an immediate and severe malfunction that would lead to engine failure.
Common Car Brands Affected by P0652 Code:
The P0652 engine error code is commonly found in following list.
- RAM
- Ford
- Toyota
Video: P0652 Engine Error code
FAQ’s
What is the P0652 engine error code?
The P0652 error code refers to a malfunction in the sensor reference voltage circuit. It typically indicates an issue with the powertrain control module (PCM) or sensor connections.
What causes the P0652 error code?
This code is usually caused by faulty wiring, a defective sensor, or an issue within the PCM. Loose connections or short circuits may also trigger this error.
What is the risk level of the P0652 error code?
The risk level of the P0652 error code is medium. While it doesn’t typically prevent the vehicle from running, it may affect the engine’s performance, leading to poor fuel efficiency or driveability issues.
Which vehicles are most commonly affected by the P0652 code?
The P0652 code can affect various vehicles, including models from brands like RAM, Ford and Toyota.