P1AF2 Saturn Code - Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost
Quick Answer
The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Common causes include Faulty Drive Motor 2 Control Module Hybrid/EV Battery, Drive Motor 2 Control Module Hybrid/EV Battery harness is open or shorted, Drive Motor 2 Control Module Hybrid/EV Battery 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
- P1AF2 Saturn indicates Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost.
- Common causes
- Common causes include Faulty Drive Motor 2 Control Module Hybrid/EV Battery, Drive Motor 2 Control Module Hybrid/EV Battery harness is open or shorted, Drive Motor 2 Control Module Hybrid/EV Battery 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.
Code P1AF2 Saturn Description
Motor control modules' loss of isolation is detected through the use of two high-impedance resistors and voltage measuring circuitry. The two resistors are connected in series between the high- voltage positive and high-voltage negative circuits. The centre connection of the two resistors is also connected to vehicle chassis. The motor control module then measures the voltage drop across one of the resistors. Without a loss of isolation, the motor control module 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.
What are the Possible Causes of the DTC P1AF2 Saturn?
- Faulty Drive Motor 2 Control Module Hybrid/EV Battery
- Drive Motor 2 Control Module Hybrid/EV Battery harness is open or shorted
- Drive Motor 2 Control Module Hybrid/EV Battery circuit poor electrical connection
How to Fix the DTC P1AF2 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 P1AF2 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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Frequently Asked Questions about P1AF2 Saturn Code
1. What are the common symptoms of OBDII code P1AF2 in a Saturn related to the Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost issue?
- Common symptoms include reduced hybrid system performance, diminished fuel efficiency, and potential illumination of the Check Engine light.
2. What are the possible causes of the OBDII code P1AF2 indicating Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost in a Saturn?
- Causes may include faulty drive motor control module, issues with the hybrid or EV battery voltage system, electrical wiring problems, or poor connections.
3. How can I diagnose the OBDII code P1AF2 in a Saturn related to the Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost problem?
- Diagnosis typically involves using a scan tool to retrieve the fault code, inspecting the drive motor control module, checking the hybrid/EV battery voltage system, and testing the electrical connections.
4. What are the recommended repair tips for addressing OBDII code P1AF2 in a Saturn with Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost?
- Repair tips may include replacing the faulty drive motor control module, repairing any issues with the hybrid/EV battery system, ensuring proper wiring connections, and clearing the fault code.
5. Can driving with the OBDII code P1AF2 related to Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost in a Saturn cause further damage?
- Continuing to drive with this issue may lead to reduced hybrid system efficiency, potential damage to other components, and could worsen the underlying problem, so prompt attention is recommended.
6. Is it safe to continue driving my Saturn if the OBDII code P1AF2 indicating Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost is present but the vehicle seems to be running fine?
- While the vehicle may seem to operate normally, it is advisable to address the underlying issue promptly to prevent any potential damage to the hybrid system components.
7. How much can I expect to pay for repairs related to the OBDII code P1AF2 in a Saturn with the Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost problem?
- Repair costs can vary depending on the exact cause of the issue, but expect to budget for diagnostic fees, parts replacement, and labor charges, which can range from a few hundred to over a thousand dollars.
8. Are there any recalls or technical service bulletins (TSBs) related to the OBDII code P1AF2 associated with the Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost in Saturn vehicles?
- It is recommended to check with Saturn dealerships or online resources for any relevant recalls or TSBs related to this specific OBDII code to see if there are any known issues or remedies provided by the manufacturer.
9. Can I reset the Check Engine light after addressing the OBDII code P1AF2 in a Saturn with Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost on my own?
- The Check Engine light can be reset using an OBDII scan tool or by disconnecting the car's battery for a few minutes, but it is advisable to ensure that the underlying issue has been properly addressed before resetting the light.
10. How can I prevent the recurrence of the OBDII code P1AF2 related to Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost in my Saturn?
- To prevent the reoccurrence of this code, regular maintenance checks, timely repairs of any related issues, and ensuring proper care of the hybrid system components are essential.
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