AutoCodes – Saturn – P1AC6 Saturn

P1AC6 Saturn Code - Drive Motor 1 Control Module Crankshaft Position Sensor Circuit

Quick Answer

The Crankshaft Position (CKP) Sensor circuits consist of an Engine Control Module (ECM) supplied 5-volt reference circuit, low reference circuit and an output signal circuit. Common causes include Faulty Drive Motor Generator Power Inverter Control Module (PIM), Drive Motor Generator Power Inverter Control Module (PIM) harness is open or shorted, Drive Motor Generator Power Inverter Control Module (PIM) 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: P1AC6 Saturn indicates Drive Motor 1 Control Module Crankshaft Position Sensor Circuit.
Common causes: Common causes include Faulty Drive Motor Generator Power Inverter Control Module (PIM), Drive Motor Generator Power Inverter Control Module (PIM) harness is open or shorted, Drive Motor Generator Power Inverter Control Module (PIM) 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 812

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1AC6 Saturn Description

The Crankshaft Position (CKP) Sensor circuits consist of an Engine Control Module (ECM) supplied 5-volt reference circuit, low reference circuit and an output signal circuit. The CKP sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes of the teeth and slots of a 58-tooth reluctor wheel on the crankshaft. Each tooth on the reluctor wheel is spaced at 60-tooth spacing, with 2 missing teeth for the reference gap. The CKP sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses per crankshaft revolution. The frequency of the CKP sensor output depends on the velocity of the crankshaft. The CKP sensor sends a digital signal, which represents an image of the crankshaft reluctor wheel, to the ECM as each tooth on the wheel rotates past the CKP sensor. The ECM uses each CKP signal pulse to determine crankshaft speed and decodes the crankshaft reluctor wheel reference gap to identify crankshaft position. This information is then used to sequence the ignition timing and fuel injection events for the engine. The ECM also uses CKP sensor output information to determine the crankshaft relative position to the camshaft, to detect cylinder misfire, and to control the CMP actuator if equipped.
Motor Control Module (MCM) 1 is also connected to the CKP sensor signal and low reference circuits. The MCM uses the CKP sensor output information to determine engine crankshaft position to aid in smooth engine Auto-starts.

OBDII Code P1AC6 Saturn - Drive Motor 1 Control Module Crankshaft Position Sensor Circuit - AutoCodes.com — P1AC6 Saturn Code - Drive Motor 1 Control Module Crankshaft Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P1AC6 Saturn?

Faulty Drive Motor Generator Power Inverter Control Module (PIM)
Drive Motor Generator Power Inverter Control Module (PIM) harness is open or shorted
Drive Motor Generator Power Inverter Control Module (PIM) circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1AC6 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 does this mean?

Code Tech Notes

If codes P0335 or P0336 are set, diagnose them prior to diagnosing this code.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1AC6 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 P1AC6 Saturn Code

1. What are the common symptoms of OBDII code P1AC6 in a Saturn related to the Drive Motor 1 Control Module Crankshaft Position Sensor Circuit?

- Common symptoms include engine misfires, rough idling, stalling, and a decrease in overall vehicle performance.

2. What are some possible causes of OBDII code P1AC6 in a Saturn?

- Possible causes include a faulty crankshaft position sensor, wiring issues in the control module circuit, or a malfunctioning drive motor control module.

3. How can I diagnose the cause of OBDII code P1AC6 in my Saturn?

- Diagnosis typically involves using a scan tool to retrieve the error code, inspecting the wiring and connections related to the crankshaft position sensor, and testing the sensor's functionality.

4. Can I continue driving my Saturn with OBDII code P1AC6 present?

- It is not recommended to continue driving your Saturn with this code present, as it can lead to further damage to the engine and other components.

5. How can I repair OBDII code P1AC6 in my Saturn?

- Repairing this code may involve replacing the crankshaft position sensor, repairing any damaged wiring or connections, or replacing the drive motor control module if necessary.

6. Are there any DIY tips for fixing OBDII code P1AC6 in a Saturn?

- Some DIY tips include checking for loose or damaged wiring, ensuring proper sensor alignment, and following the manufacturer's diagnostic procedures for troubleshooting.

7. Will resetting the OBDII system clear the P1AC6 code in my Saturn?

- Resetting the OBDII system may temporarily clear the code, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it typically cost to repair OBDII code P1AC6 in a Saturn?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from $100 to $500 or more, including parts and labor.

9. Can a mechanic easily fix OBDII code P1AC6 in a Saturn?

- A qualified mechanic with experience in diagnosing and repairing electrical and sensor-related issues should be able to effectively address OBDII code P1AC6 in a Saturn.

10. Is OBDII code P1AC6 a common issue in Saturn vehicles?

- While not extremely common, OBDII code P1AC6 related to the Drive Motor 1 Control Module Crankshaft Position Sensor Circuit can occur in Saturn vehicles, especially in older models or those with high mileage.