AutoCodes – Saturn – P1B06 Saturn

P1B06 Saturn Code - Drive Motor 2 Control Module High Voltage System Interlock Circuit

Quick Answer

The high voltage interlock circuit is utilized to verify high voltage component integrity. Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator Power Inverter Module 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: P1B06 Saturn indicates Drive Motor 2 Control Module High Voltage System Interlock Circuit.
Common causes: Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator Power Inverter Module 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 959

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 Mar 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B06 Saturn Description

The high voltage interlock circuit is utilized to verify high voltage component integrity. High voltage interlock circuit is a circuit loop that passes through certain high voltage components. High voltage interlock circuit is used to determine if access to high voltage components is being attempted. The opening of these high voltage components causes the high voltage interlock circuit to open. The battery energy control module sources about 12 mA of current on the 5V high voltage interlock circuit loop. The battery energy control module monitors both the high voltage interlock source current circuit and the high voltage interlock return current circuit in order to detect circuit faults. Both motor control modules monitor the circuit for current in order to detect an open condition. When the battery energy control module and/or the motor control modules sense conditions such as a loss of high voltage interlock circuit current, the high voltage contactor relays are commanded open by the hybrid powertrain control module.

OBDII Code P1B06 Saturn - Drive Motor 2 Control Module High Voltage System Interlock Circuit - AutoCodes.com — P1B06 Saturn Code - Drive Motor 2 Control Module High Voltage System Interlock Circuit

What does this mean?

What are the Possible Causes of the DTC P1B06 Saturn?

Faulty Drive Motor Generator Power Inverter Module
Drive Motor Generator Power Inverter Module harness is open or shorted
Drive Motor Generator Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1B06 Saturn?

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 P1B06 Saturn 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.

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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 P1B06 Saturn Code

1. What does the OBDII code P1B06 mean on a Saturn vehicle?

P1B06 indicates an issue with the Drive Motor 2 Control Module High Voltage System Interlock Circuit, which monitors the high-voltage connections in the hybrid or electric drive system.

2. What are the common symptoms of code P1B06 in a Saturn?

Common symptoms include the check engine light turning on, reduced vehicle performance, and possible issues with the hybrid or electric drivetrain.

3. What causes the P1B06 code to appear on a Saturn?

Potential causes include a loose or damaged high-voltage system interlock connection, a faulty Drive Motor 2 Control Module, or wiring issues in the interlock circuit.

4. Is it safe to drive with a P1B06 code on a Saturn?

Driving with this code may not be safe, as it involves the high-voltage system. Reduced performance and potential electrical risks could occur, so itâ€™s best to address the issue promptly.

5. How do you diagnose the P1B06 code on a Saturn?

Diagnosis involves inspecting the high-voltage system interlock connections, checking for damaged or corroded wiring, and testing the functionality of the Drive Motor 2 Control Module.

6. Can a faulty Drive Motor 2 Control Module cause the P1B06 code?

Yes, a malfunctioning Drive Motor 2 Control Module can trigger this code if it fails to properly monitor the high-voltage system interlock circuit.

7. How can you fix the P1B06 code on a Saturn vehicle?

Repairs may include reconnecting or replacing a loose or damaged interlock connector, repairing wiring, or replacing the Drive Motor 2 Control Module if itâ€™s defective.

8. Does the P1B06 code require specialized tools to repair?

Yes, diagnosing and repairing this code typically requires specialized tools to safely work with high-voltage systems and scan the vehicle's control modules.

9. Can extreme weather conditions cause the P1B06 code?

Extreme weather, such as heavy rain or high humidity, can cause corrosion or damage to high-voltage connectors, potentially triggering this code.

10. Should I attempt to fix the P1B06 code on my own?

Unless youâ€™re trained to work with high-voltage systems, itâ€™s recommended to leave repairs to a qualified technician to ensure safety and proper handling of the issue.