AutoCodes – Jeep – C2128 Jeep

C2128 Jeep Code - ECU Reset/Recovery Occurred

Quick Answer

The Electro-Hydraulic Power Steering (EHPS) Pump assembly contains a control module, brushless electric motor, and hydraulic pump integrated into a single unit. Common causes include Faulty Electro-Hydraulic Power Steering (EHPS) Pump, Electro-Hydraulic Power Steering (EHPS) Pump harness is open or shorted, Electro-Hydraulic Power Steering (EHPS) Pump circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C2128 Jeep indicates ECU Reset/Recovery Occurred.
Common causes: Common causes include Faulty Electro-Hydraulic Power Steering (EHPS) Pump, Electro-Hydraulic Power Steering (EHPS) Pump harness is open or shorted, Electro-Hydraulic Power Steering (EHPS) Pump circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,591

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2128 Jeep Description

The Electro-Hydraulic Power Steering (EHPS) Pump assembly contains a control module, brushless electric motor, and hydraulic pump integrated into a single unit. The EHPS Pump draws power from the 12-Volt electrical system and provides the necessary flow and pressure to the steering gear to provide normal power steering. The EHPS Pump requires communication over the CAN C bus to function properly. The output flow of the EHPS Pump is varied as a function of Steering Wheel Rate (received from SAS) and Vehicle Speed (received from ABS Module) in order to provide the optimum flow of power steering fluid to the steering gear under all operating conditions. The EHPS Pump will start to provide steering assist when the Vehicle speed message greater than 5 km/h (3 mph) is received on CAN C. If the Vehicle Speed message is missing at vehicle startup, the EHPS Pump will not operate. If the Vehicle Speed message is lost during operation the EHPS pump will use a default vehicle speed of 85 km/h (59 mph) to calculate desired flow and as a result, steering effort will no longer be speed sensitive. If the Steering Wheel Position message is lost the EHPS Pump will use a default steering wheel rate of 230Â°/sec to calculate desired flow and as a result, steering effort may be higher on evasive steering maneuvers. The EHPS pump will resume normal operation automatically once any missing message or out of range condition noted above is restored to normal.

OBDII Code C2128 Jeep - ECU Reset/Recovery Occurred - AutoCodes.com — C2128 Jeep Code - ECU Reset/Recovery Occurred

What does this mean?

What are the Possible Causes of the DTC C2128 Jeep?

Faulty Electro-Hydraulic Power Steering (EHPS) Pump
Electro-Hydraulic Power Steering (EHPS) Pump harness is open or shorted
Electro-Hydraulic Power Steering (EHPS) Pump circuit poor electrical connection

How to Fix the DTC C2128 Jeep?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C2128 Jeep code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C2128 Jeep code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C2128 Jeep Code

1. What does OBDII code C2128 in a Jeep mean?

- OBDII code C2128 indicates that an ECU reset/recovery has occurred in the vehicle.

2. What are the common symptoms of OBDII code C2128 in a Jeep?

- Common symptoms may include intermittent loss of power steering, traction control issues, or the vehicle going into limp mode.

3. What can cause the ECU reset/recovery issue indicated by code C2128 in a Jeep?

- The ECU reset/recovery can be triggered by a power interruption, low battery voltage, or a fault in the vehicle's electronic control systems.

4. How can I diagnose the ECU reset/recovery issue associated with code C2128 in my Jeep?

- Diagnosing this issue typically involves checking the vehicle's battery voltage, inspecting wiring connections, and scanning for any related trouble codes.

5. Can I continue driving my Jeep with OBDII code C2128 present?

- It is not recommended to drive the vehicle with code C2128 active, as it may result in safety concerns and potential performance issues.

6. How can I reset the ECU to clear the C2128 code on my Jeep?

- To reset the ECU and clear the C2128 code, you may disconnect the vehicle's battery for a few minutes or use a diagnostic tool to perform a reset.

7. Will the ECU reset/recovery issue indicated by code C2128 in a Jeep reset on its own?

- In some cases, the ECU reset/recovery issue may resolve itself if the underlying cause, such as a temporary power interruption, is no longer present.

8. What are the repair options for resolving the ECU reset/recovery issue associated with OBDII code C2128 in a Jeep?

- Repair options may involve addressing the root cause of the ECU reset, such as fixing wiring faults, replacing a faulty battery, or rectifying electronic system malfunctions.

9. How can I prevent the ECU reset/recovery problem indicated by code C2128 from recurring in my Jeep?

- Regularly maintaining your vehicle's electrical system, ensuring the battery is in good condition, and promptly addressing any warning lights can help prevent the ECU reset issue.

10. Is it necessary to visit a mechanic for the ECU reset/recovery problem indicated by code C2128 in a Jeep?

- While some DIY troubleshooting like checking battery connections can be done, consulting a mechanic is recommended for a thorough diagnosis and proper repair of the underlying issue.