P0653 OBD-II Trouble Code: Sensor Reference Voltage “B” Circuit High

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0653 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0653 code

P0653 is a diagnostic trouble code (DTC) for "Sensor Reference Voltage “B” Circuit High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0653 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0653 code definition

The P0653 trouble code detects a problem with the sensor reference voltage “B” circuit.

What the P0653 code means

The P0653 code is a standard OBD-II trouble code that signals an error with the sensor reference voltage “B” circuit. The “B” circuit is a specific area of the sensor reference circuit, as opposed to a specific component of the circuit. The engine drivability sensors send 5-volt reference signals to the powertrain control module (PCM), and many other control modules, such as the instrument panel control module, traction control module, cruise control module, and climate control module. When the PCM or any of these other control modules notes a fault in the signals from these sensors, the P0653 trouble code will be detected.

What causes the P0653 code?

The majority of the issues that cause the P0653 trouble code to be detected are electrical:

  • Malfunctioning electrical components between the interfacing control modules
  • Malfunctioning ground wires in the PCM
  • Malfunctioning ground wires in other control modules
  • In rare cases, a defective PCM or other control module
  • Malfunctioning electrical components between the engine sensors and the PCM input circuitry

What are the symptoms of the P0653 code?

When the P0653 trouble code is detected, it will likely be accompanied by the Check Engine Light lighting up on the instrument panel. It is also very common for the vehicle to experience diminished engine performance, such as constant misfiring, low power, a rough idle, and an inability to start. Fuel efficiency will likely be diminished as well.

How does a mechanic diagnose the P0653 code?

  • The P0653 code should be diagnosed with the help of a standard OBD-II trouble code scanner. A trustworthy technician will use the scanner to observe the freeze frame data and gather information about the code.

  • The technician will also note any additional trouble codes that are present, as all codes should be addressed in the order in which they appear.

  • The mechanic will then reset the trouble codes and restart the vehicle, to see if the codes return. If the codes disappear after this reset and restart, then they likely are the result of an intermittent issue, or they were triggered erroneously.

  • If the P0653 code returns, the mechanic should begin with a visual inspection that covers all electrical components that could be in play. The wires, connectors, and fuses between the engine sensors and the PCM input circuitry should all be inspected, as should those that run between the interfacing control modules. Next, the ground wires in all control modules should be examined.

  • If the issue has not been found, the mechanic should begin inspecting the control modules to look for components that are defective, or entire modules that are malfunctioning. This can be done manually, or it can be done with the aid of a controller area network (CAN) bus scanner.

  • Whenever a component in the vehicle is replaced, the mechanic should reset the codes and restart the vehicle before continuing with the inspection and repairs. This assures that the mechanic will be alerted as soon as the issue is resolved.

Common mistakes when diagnosing the P0653 code

The most common mistakes that are made when diagnosing the P0653 code come from a failure to properly obey the OBD-II diagnosis protocol. The protocol should be adhered to, step by step, at all times, to guarantee an accurate and efficient inspection and repair.

Since the P0653 trouble code impacts communication, it is common for additional codes to be present as a result of the P0653 code. It can be common for these additional codes to be dealt with before the P0653 code, which can lead to fruitless repairs. Trouble codes should always be handled in the order in which they are shown in the freeze frame data.

How serious is the P0653 code?

A vehicle that has a detected P0653 trouble code is likely still drivable. However, the car will probably experience depleted engine performance, and should be inspected and repaired as soon as possible.

What repairs can fix the P0653 code?

Repairs for the P0653 trouble code include:

Additional comments for consideration regarding the P0653 code

It is rare for the PCM or another control module to require replacement following the P0653 code. However, if one of the control modules does need to be replaced, it will also need to be reprogrammed.

In many vehicles, the P0653 code must be detected eight times before the Check Engine Light will illuminate.

Need help with a P0653 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

P0653
trouble codes
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0653 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,696

Rating Summary
3,372
162
42
24
96
3,372
162
42
24
96

David

13 years of experience
339 reviews
David
13 years of experience
Great
2011 PORSCHE CAYENNE - CHECK ENGINE LIGHT IS ON - ANTIOCH, CALIFORNIA

Jeffrey

24 years of experience
683 reviews
Jeffrey
24 years of experience
Very nice and helpful did a great job on my car.
2007 PONTIAC G5 - CHECK ENGINE LIGHT IS ON - CHARLOTTE, NORTH CAROLINA

Joseph

17 years of experience
285 reviews
Joseph
17 years of experience
Knowledgeable and informative.
2011 INFINITI M37 - CHECK ENGINE LIGHT IS ON - SANDY, UTAH

Robert

30 years of experience
75 reviews
Robert
30 years of experience
Thanks for double checking my quote.
1996 TOYOTA AVALON - CHECK ENGINE LIGHT IS ON - ATLANTA, GEORGIA

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...

Related questions

Q: Misfire and P0420

Hello - the P0420 and the inconsistent waveform for the post-cat O2 sensor might be related to your failing intake manifold gasket issue. If tiny droplets of coolant are being sucked into the engine - one failure mode for this...

Q: Why is my car driving fine at first and then I hear a ticking sound whenever I press the gas? I also have hard brakes and steering.

Hi there. Typically when the Check Engine Light comes on, it indicates that the on board computer has detected an error code from either a sensor or a mechanical part on the vehicle. The ticking issue might be caused by...

Q: Q: Cranks but won't start

This may happen for many reasons. There are in fact modes in your truck's computer that will trigger the ECU to shut the engine down in the event of some kind of failure that may cause major damage. This is...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com