AutoCodes – Generic – C1048

C1048 Code - Left Rear Wheel Pressure Phase Monitoring

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Left Rear Wheel Pressure Phase. Common causes include Dirty Left Rear Tone Wheel, Dirty Left Rear Wheel Speed Sensor (WSS), Faulty Left Rear Wheel Speed Sensor (WSS). 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: C1048 indicates Left Rear Wheel Pressure Phase Monitoring.
Common causes: Common causes include Dirty Left Rear Tone Wheel, Dirty Left Rear Wheel Speed Sensor (WSS), Faulty Left Rear Wheel Speed Sensor (WSS).
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 5,958

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1048 Description

The Anti-Lock Brake System (ABS) Module monitors the Left Rear Wheel Pressure Phase. The ABS Module sets the OBDII if the ABS Module detects a pressure reduction phase and the following pressure hold phase is too long.

OBDII Code C1048 - Left Rear Wheel Pressure Phase Monitoring - AutoCodes.com — C1048 Code - Left Rear Wheel Pressure Phase Monitoring

What does this mean?

What are the Possible Causes of the DTC C1048?

Dirty Left Rear Tone Wheel
Dirty Left Rear Wheel Speed Sensor (WSS)
Faulty Left Rear Wheel Speed Sensor (WSS)
Left Rear Wheel Speed Sensor (WSS) harness is open or shorted
Left Rear Wheel Speed Sensor (WSS) circuit poor electrical connection
Damage Left Rear Tone Wheel
Faulty Anti-Lock Brake System (ABS) Module

How to Fix the DTC C1048?

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 C1048 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 C1048 code?

Need more information on how to fix the C1048 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1048 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1048 Chrysler — Left Rear Wheel Pressure Phase Monitoring
C1048 Dodge — Left Rear Wheel Pressure Phase Monitoring
C1048 Jeep — Left Rear Wheel Pressure Phase Monitoring
C1048 RAM — Left Rear Wheel Pressure Phase Monitoring

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 C1048 Code

1. What are the common symptoms of OBDII code C1048 (Left Rear Wheel Pressure Phase Monitoring)?

- Common symptoms include the illumination of the ABS warning light on the dashboard and possible issues with the anti-lock braking system.

2. What can cause OBDII code C1048 to trigger?

- The code C1048 may be triggered by issues such as a faulty wheel speed sensor, damaged wiring, or a problem with the ABS module.

3. How can I diagnose the cause of OBDII code C1048?

- Diagnosing the cause of C1048 typically involves conducting a thorough inspection of the left rear wheel speed sensor, checking the wiring for damage, and using a diagnostic scanner to read the ABS module for fault codes.

4. Can I continue driving with OBDII code C1048 present?

- It is not recommended to continue driving with OBDII code C1048 present, as it can affect the proper functioning of the anti-lock braking system and compromise vehicle safety.

5. What are some repair tips for fixing OBDII code C1048?

- Repair tips may include replacing the left rear wheel speed sensor, repairing damaged wiring, resetting the ABS module, and clearing the fault code using a diagnostic scanner.

6. Are there any DIY solutions for resolving OBDII code C1048?

- While some basic troubleshooting steps can be taken, resolving OBDII code C1048 often requires specialized tools and expertise, making it more suitable for professional repair.

7. What are the potential consequences of ignoring OBDII code C1048?

- Ignoring OBDII code C1048 can lead to compromised braking performance, reduced vehicle stability, and potential safety hazards, especially in emergency braking situations.

8. How much does it typically cost to repair OBDII code C1048?

- The cost of repairing OBDII code C1048 can vary depending on the underlying issue, but it may involve expenses such as parts replacement, labor costs, and diagnostic fees.

9. Is OBDII code C1048 specific to a certain vehicle make or model?

- OBDII code C1048 related to Left Rear Wheel Pressure Phase Monitoring is commonly found in various vehicle makes and models equipped with an anti-lock braking system.

10. Can weather conditions or road debris trigger OBDII code C1048?

- Yes, extreme weather conditions, road debris, or excessive wear and tear on the wheel speed sensor can potentially trigger OBDII code C1048 by affecting the proper monitoring of the left rear wheel pressure phase.