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P1AF6 Saturn Code - Drive Motor 2 Control Module Hybrid Battery Voltage Isolation Sensor Circuit Low Voltage

Quick Answer

The drive motor generator Power Inverter Control Module (PIM) contains two Motor Control Modules (MCMs). Common causes include Reprogram Power Inverter Control Module (PIM), Faulty Power Inverter Control Module (PIM), Power Inverter Control Module (PIM) harness is open or shorted. 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: P1AF6 Saturn indicates Drive Motor 2 Control Module Hybrid Battery Voltage Isolation Sensor Circuit Low Voltage.
Common causes: Common causes include Reprogram Power Inverter Control Module (PIM), Faulty Power Inverter Control Module (PIM), Power Inverter Control Module (PIM) harness is open or shorted.
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 764

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 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1AF6 Saturn Description

The drive motor generator Power Inverter Control Module (PIM) contains two Motor Control Modules (MCMs). Each MCM measures hybrid battery High Voltage (HV) with several internal sensors. The MCMs test for Loss Ff Isolation (LOI) between either the HV positive circuit or HV negative circuit and vehicle chassis. The MCMs test for isolation when the HV contactor relays are closed. The battery energy control module (BECM) only tests the hybrid battery assembly for HV loss of isolation when the HV contactor relays are open.
MCM LOI is detected through the use of two high-impedance resistors and voltage measuring circuitry. The two resistors are connected in series between the HV positive and HV negative circuits. The center connection of the two resistors is also connected to vehicle chassis. The MCM then measures the voltage drop across one of the resistors. Without a loss of isolation, the MCM should measure about half of the high voltage potential. This is referred to as mid-pack voltage. The Mid-pack voltage value is then doubled by the software and displayed on a scan tool as Motor 1 Isolation Voltage or Motor 2 Isolation Voltage. When a loss of isolation is present, the motor isolation voltage display will indicate voltage that is more or less than actual hybrid battery high voltage. The MCM monitors the LOI voltage measuring circuitry for correct operation.

OBDII Code P1AF6 Saturn - Drive Motor 2 Control Module Hybrid Battery Voltage Isolation Sensor Circuit Low Voltage - AutoCodes.com — P1AF6 Saturn Code - Drive Motor 2 Control Module Hybrid Battery Voltage Isolation Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1AF6 Saturn?

Reprogram Power Inverter Control Module (PIM)
Faulty Power Inverter Control Module (PIM)
Power Inverter Control Module (PIM) harness is open or shorted
Power Inverter Control Module (PIM) circuit poor electrical connection

How to Fix the DTC P1AF6 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 P1AF6 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.

Need more information about the P1AF6 Saturn 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 P1AF6 Saturn Code

1. What are the common symptoms of OBDII code P1AF6 in a Saturn related to the Drive Motor 2 Control Module Hybrid Battery Voltage Isolation Sensor Circuit Low Voltage?

The common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential illumination of the hybrid system warning light on the dashboard.

2. What can cause the OBDII code P1AF6 in a Saturn?

This code is often triggered by issues with the hybrid battery voltage isolation sensor circuit, such as a wiring fault, sensor malfunction, or a problem with the drive motor 2 control module.

3. How can I diagnose the cause of OBDII code P1AF6 in my Saturn?

Diagnosing this code requires checking the hybrid battery voltage isolation sensor circuit for continuity, inspecting the wiring for damage, and testing the drive motor 2 control module for proper function using a diagnostic scan tool.

4. Is it safe to continue driving with OBDII code P1AF6 present in a Saturn?

It is not recommended to continue driving with this code active, as it can lead to further damage to the hybrid system components and potentially result in a loss of power or drivability issues.

5. Can I repair OBDII code P1AF6 in my Saturn at home?

Depending on your level of automotive expertise, you may be able to address this code at home by inspecting the wiring, connectors, and sensor related to the hybrid battery voltage isolation circuit. However, complex repairs involving the drive motor 2 control module may require professional assistance.

6. How much does it typically cost to repair OBDII code P1AF6 in a Saturn?

The cost of repairing this code can vary depending on the specific cause of the issue. Simple fixes like repairing a damaged wire may be relatively inexpensive, while replacing the drive motor 2 control module can be more costly.

7. Will resetting the OBDII code P1AF6 in my Saturn make it go away permanently?

Simply resetting the code without addressing the underlying issue will not make it disappear permanently. It is crucial to diagnose and repair the root cause to prevent the code from reappearing.

8. Can extreme weather conditions affect the occurrence of OBDII code P1AF6 in a Saturn?

Extreme temperatures can potentially impact the performance of hybrid system components, including the drive motor 2 control module and voltage isolation sensor. It is essential to monitor these components in harsh weather conditions.

9. Is it necessary to visit a dealership for OBDII code P1AF6 diagnosis and repair in a Saturn?

While a dealership may have specialized knowledge and tools for diagnosing and repairing this code, independent repair shops with experience in hybrid vehicles can also effectively address the issue in a Saturn.

10. How often should I have my Saturn's hybrid system components inspected to prevent OBDII code P1AF6 from occurring?

Regular maintenance and inspections of the hybrid system components, including the drive motor 2 control module and voltage isolation sensor, can help prevent issues like OBDII code P1AF6. It is recommended to follow the manufacturer's maintenance schedule for optimal performance.