The OBD code P0653 for Dodge indicates a fault with the Engine Control Module (ECM) sensor reference voltage A circuit.
Symptoms include the Engine Light being ON.
Causes may include a faulty ECM, open or shorted ECM harness, poor electrical connection, or a shorted sensor on the 5volt circuit.
This issue is moderately serious.
To fix, inspect wiring harness, connectors, and components for damage or corrosion.
Repair Importance Level | 10.0 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the Dodge p0653 OBD Code
The Dodge P0653 fault code typically triggers when there is an issue with the sensor reference voltage.
- Symptoms: Engine Light ON.
- Possible loss of communication with the powertrain control module.
- Engine may go into a failsafe mode.
- Engine performance may be affected.
Causes of the Dodge p0653 OBD Code
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P0653 in a Dodge typically indicates a fault with the sensor reference voltage circuit.
- P0653 can be caused by a faulty Engine Control Module (ECM).
- An open or shorted ECM harness.
- Poor electrical connection in the ECM circuit.
- A shorted sensor on the 5volt circuit.
Fixing Dodge Error Code p0653 Step By Step
Repair the issue causing the Dodge P0653 fault code by addressing the sensor circuit voltage high condition.
- To fix the Dodge OBDII code P0653, first, review the possible causes mentioned above.
- Visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, consider replacing the engine control module (ECM) as a next step.
- After replacing the ECM, perform any necessary reprogramming or software updates to ensure proper functionality.
Cost Of Fixing Dodge p0653 Fault Code
Diagnosing and repairing Dodge fault code P0653 typically involves testing and replacing the sensor as needed.
The cost to diagnose and fix the Dodge OBD code P0653 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. The final cost may vary based on shop rates and the complexity of the repair.
Details of the Dodge p0653 OBD Code
Dodge fault code P0653 relates to the sensor reference voltage ‘A’ circuit high.
Dodge OBD code P0653 means Sensor Reference Voltage ‘B’ Circuit High.
This code is triggered when the Powertrain Control Module (PCM) detects that the sensor reference voltage ‘B’ circuit is higher than normal.
The sensor reference voltage ‘B’ circuit is typically associated with various sensors in the vehicle, such as the throttle position sensor, manifold absolute pressure sensor, or fuel tank pressure sensor.
These sensors rely on a stable reference voltage to provide accurate data to the PCM for proper engine operation.
When the PCM detects that the sensor reference voltage ‘B’ circuit is too high, it will trigger code P0653 and illuminate the Check Engine Light to alert the driver of a potential issue with the sensor circuit.
It is important to inspect the wiring and connectors associated with the sensor reference voltage ‘B’ circuit to look for any signs of damage, corrosion, or poor connections.
Additionally, testing the sensors connected to this circuit for proper operation may be necessary to pinpoint the root cause of the high voltage condition triggering the fault code.
Mechanic’s Tech Notes
For Dodge code P0653, check for a sensor voltage supply circuit issue.
To diagnose and fix OBDII code P0653 in a Dodge, start by checking the power and ground to the transmission control module (TCM) using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, and check connector pins for signs of being broken, bent, pushed out, or corroded.
This thorough inspection can help identify and resolve issues related to the TCM voltage supply circuit problem indicated by code P0653.
FAQ
OBD code P0653 in a Dodge means a fault with the Engine Control Module (ECM). Check ECM and related wiring for issues causing the fault.
Common symptoms for fault code P0653 in a Dodge include the Engine Light ON. Causes may be a faulty ECM, open/shorted harness, or poor electrical connection.
Diagnose and repair OBD code P0653 in Dodge: Symptoms Engine Light ON, Causes Faulty ECM, open/shorted harness, poor connection, Fix Inspect wiring, connectors, components for damage.

Wrap Up
If your Dodge is displaying OBD code p0653 and experiencing issues with the Malfunction Indicator Lamp (MIL) or engine performance, it could be caused by a faulty sensor in the engine control module (ECM) circuit.
This code typically indicates a problem with the sensor reference voltage B circuit.
To address Dodge OBD code p0653, start by checking the wiring harness and connectors for any signs of damage or corrosion.
Test the sensor’s resistance and voltage to determine if it needs replacement.
Ensure proper connections and secure any loose wiring to resolve the issue effectively.
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