[SOLVED] Dodge U0172 Code: Fix Lost Left Side Satellite Communication

The OBD code U0172 for Dodge indicates a communication error between the Left Side Impact Sensor 1 and the Occupant Restraint Controller (ORC).

Symptoms include the Air Bag and Engine warning lights being illuminated.

This issue is caused by a faulty sensor, wiring harness issues, or a poor electrical connection.

It is crucial to address promptly to ensure proper airbag functionality.

A possible fix involves inspecting and repairing the sensor, harness, or connector connections.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

Symptoms of the Dodge u0172 OBD Code

The Dodge U0172 fault code indicates a communication problem between different control modules in the vehicle.

Symptoms: Air Bag Warning Light ON.
Engine Light ON (or Service Engine Soon Warning Light).
Possible symptoms may include issues with the vehicle’s communication network, such as intermittent loss of communication between control modules.
This can lead to various electrical malfunctions within the vehicle.

Causes of the Dodge u0172 OBD Code

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Possible reasons for Dodge U0172 include faulty communication between the PCM and the TCM.

U0172 can be caused by a faulty Left Side Impact Sensor 1.
A Left Side Impact Sensor 1 harness that is open or shorted.
A Left Side Impact Sensor 1 circuit with a poor electrical connection.
A faulty Occupant Restraint Controller (ORC).

Fixing Dodge Error Code u0172 Step By Step

Resolve Dodge U0172 by inspecting the wiring harness for possible chafing or damage.

To fix the Dodge OBDII code U0172, start by reviewing the possible causes mentioned above.
Visually examine the wiring harness and connectors associated with the affected module.
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, proceed to test the affected module for proper operation.
Consider resetting the module or performing a software update if necessary.
Replace the module if all other steps fail to resolve the U0172 code.

Cost Of Fixing Dodge u0172 Fault Code

The repair for Dodge fault code U0172 may involve diagnosing and fixing a communication issue.

The cost to diagnose and fix Dodge OBD code U0172 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.

Costs depend on shop rates, complexity of the issue, and any additional parts or labor needed for the repair.

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Details of the Dodge u0172 OBD Code

Dodge code U0172 relates to a communication problem between different control modules in the vehicle.

Dodge OBD code U0172 means a communication error between the electronic control module (ECM) and the electronic brake control module (EBCM).

This code is triggered by the ECM when it detects a loss of communication with the EBCM over the Controller Area Network (CAN) bus.

The CAN bus is a communication network that allows different modules in the vehicle to communicate with each other.

When the ECM does not receive the expected messages from the EBCM, it sets code U0172.

Mechanic’s Tech Notes

Detailed information on Dodge fault code U0172, including possible causes and diagnostic steps.

To diagnose and fix OBDII code U0172 in a Dodge, start by visually inspecting the wiring harness and connectors related to the Transmission Control Module (TCM).

Look for any damage or corrosion on the connector pins.

Use a multimeter to check TCM power and ground connections.

Utilize a scan tool to confirm TCM communication over the Controller Area Network (CAN) network.

If necessary, consider reprogramming or reflashing the TCM.

This process can help identify and address issues causing the U0172 fault code.

FAQ

1. What are the common symptoms associated with OBD code U0172 in a Dodge vehicle?

Common symptoms of OBD code U0172 in a Dodge vehicle include Air Bag Warning Light ON and Engine Light ON. Possible causes are a faulty Left Side Impact Sensor 1 or related wiring issues. Fix involves inspecting and repairing the sensor and wiring connections.

2. What are the potential causes of OBD code U0172 in a Dodge vehicle?

OBD code U0172 in a Dodge may be caused by a faulty Left Side Impact Sensor 1, its harness issues, or a faulty Occupant Restraint Controller.

3. How can I diagnose and fix OBD code U0172 in my Dodge vehicle?

Diagnose and fix OBD code U0172 in your Dodge: Symptoms Air Bag & Engine Lights ON. Causes Faulty Left Side Impact Sensor 1. Fix Inspect sensor, harness, and connections.

Wrap Up

If your Dodge is displaying OBD code U0172 along with issues like rough idling, poor fuel economy, or stalling, it may indicate a problem with the fuel trim system.

This could be caused by a vacuum leak, faulty oxygen sensors, or a malfunctioning fuel pressure regulator.

To address Dodge OBD code U0172, start by checking for any vacuum leaks in the intake system.

Inspect the oxygen sensors for proper operation and ensure the fuel pressure regulator is functioning correctly.

Additionally, test the fuel pump and its electrical connections for any faults.