AutoCodes – Generic – C1005

C1005 Code - Status Lamp Failure BCM Signal Invalid

Quick Answer

The Electronic Power Steering (EPS) system employs a column-mounted electric power steering unit along with a manual steering rack and pinion to provide a variable power-assisted steering with reduced parasitic engine load. Common causes include Faulty Instrument Panel Cluster (IPC), Instrument Panel Cluster (IPC) harness is open or shorted, Instrument Panel Cluster (IPC) 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: C1005 indicates Status Lamp Failure BCM Signal Invalid.
Common causes: Common causes include Faulty Instrument Panel Cluster (IPC), Instrument Panel Cluster (IPC) harness is open or shorted, Instrument Panel Cluster (IPC) 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 3,935

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 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1005 Description

The Electronic Power Steering (EPS) system employs a column-mounted electric power steering unit along with a manual steering rack and pinion to provide a variable power-assisted steering with reduced parasitic engine load. The EPS controller monitors two steering wheel position sensors to determine the absolute position of the steering shaft and determines driver input via a steering wheel torque sensor. In addition, the EPS controller uses four hall-effect position sensors to monitor the absolute and commanded position of the motor. The EPS controller obtains vehicle speed, alternator output, and steering mode information, and broadcasts warning lamp status and service diagnostic information, on CAN C. During normal driving, as the driver turns the wheel, the torque sensor value changes based on the effort the driver uses to turn the wheel. The controller uses this information, along with the steering wheel absolute position and vehicle speed, to determine the amount torque required from the motor. Voltage is then provided to the motor to provide power steering assist. If the Body Control Module (BCM) detects an EPS status lamp failure, this C1005 code will set.

OBDII Code C1005 - Status Lamp Failure BCM Signal Invalid - AutoCodes.com — C1005 Code - Status Lamp Failure BCM Signal Invalid

What does this mean?

What are the Possible Causes of the DTC C1005?

Faulty Instrument Panel Cluster (IPC)
Instrument Panel Cluster (IPC) harness is open or shorted
Instrument Panel Cluster (IPC) circuit poor electrical connection

How to Fix the DTC C1005?

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 C1005 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 C1005 code?

Need more information on how to fix the C1005 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1005 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1005 Fiat — Status Lamp Failure BCM Signal Invalid

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 C1005 Code

1. What are the common symptoms of OBDII code C1005 (Status Lamp Failure BCM Signal Invalid)?

The common symptoms include the malfunction of the status lamp (dashboard indicator light) and potential issues with the Body Control Module (BCM) signal.

2. What could cause the OBDII code C1005 to appear?

This code may be triggered by a faulty BCM, damaged wiring, loose connections, or a malfunctioning status lamp circuit.

3. How is OBDII code C1005 diagnosed?

Diagnosing this code involves using a diagnostic scanner to retrieve the code, checking the status lamp circuit, testing the BCM signal, inspecting wiring and connections, and conducting further troubleshooting as needed.

4. Can OBDII code C1005 be fixed by resetting the vehicle's computer?

Simply resetting the vehicle's computer may not resolve this issue. It is important to identify and address the root cause of the problem, such as a faulty BCM or wiring issue.

5. What are some repair tips for resolving OBDII code C1005?

Repair tips may include inspecting and repairing any damaged wiring, ensuring proper connections, replacing the status lamp if necessary, and testing the BCM for faults.

6. Is it safe to continue driving with OBDII code C1005 present?

While the vehicle may still be operable with this code present, it is important to address the underlying issue promptly to prevent further complications and ensure the proper functioning of the status lamp and BCM.

7. Can a DIY enthusiast fix OBDII code C1005 at home?

Depending on their skill level and access to tools, a DIY enthusiast may be able to address this code by following diagnostic procedures, checking wiring and connections, and potentially replacing components like the status lamp or BCM.

8. How much does it typically cost to repair OBDII code C1005?

The cost of repairing this code can vary widely depending on the specific cause of the issue, the parts needed for repair or replacement, labor costs, and whether the repair is done at a dealership, mechanic shop, or DIY.

9. Are there any recalls or technical service bulletins related to OBDII code C1005?

It is recommended to check with the vehicle manufacturer, dealership, or online databases for any recalls or technical service bulletins related to this code, as there may be known issues or solutions available.

10. What are the potential long-term effects of ignoring OBDII code C1005?

Ignoring this code could lead to continued malfunction of the status lamp, potential electrical issues related to the BCM, or difficulties in monitoring the vehicle's status and performance, so it is advisable to address the problem in a timely manner.