AutoCodes – Generic – P1CC7

P1CC7 Code - Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open

Quick Answer

This diagnostic detects if the power supply to Main Micro Processor (MMP) is too low with three different tests relative to different vehicle operating conditions. Common causes include Low Battery Charge, Faulty Transmission Controller Module (TCM), Transmission Controller Module (TCM) 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: P1CC7 indicates Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open.
Common causes: Common causes include Low Battery Charge, Faulty Transmission Controller Module (TCM), Transmission Controller Module (TCM) 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 2,591

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 Apr 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1CC7 Description

This diagnostic detects if the power supply to Main Micro Processor (MMP) is too low with three different tests relative to different vehicle operating conditions. The MMP power supply is tested outside the engine cranking mode (because in this condition a brief reduction of power supply may be possible). The first check: the Transmission Controller Module (TCM) compares the MMP power supply with minimum threshold values. When the actual value of power supply is below its minimum boundary the diagnostic will be considered failing. The second check: the TCM verifies the MMP power supply is not lower than a threshold for more than an amount of time after the engine cranking mode is finished plus a time delay. The third check: the TCM verifies the MMP power supply is not lower than a threshold for more than an amount of time after the engine cranking mode is finished plus a time delay only when the hydraulic pump is on for more than a time and the pump temperature is lower than a value.

OBDII Code P1CC7 - Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open - AutoCodes.com — P1CC7 Code - Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open

What does this mean?

What are the Possible Causes of the DTC P1CC7?

Low Battery Charge
Faulty Transmission Controller Module (TCM)
Transmission Controller Module (TCM) harness is open or shorted
Transmission Controller Module (TCM) circuit poor electrical connection

How to Fix the DTC P1CC7?

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 P1CC7 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 P1CC7 code?

Need more information on how to fix the P1CC7 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1CC7 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1CC7 Chrysler — Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open
P1CC7 Dodge — Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open
P1CC7 Fiat — Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open
P1CC7 Jeep — Low Battery Voltage-Main Micro Processor Supply Shorted To Ground Or Open

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 P1CC7 Code

1. What are the common symptoms of OBDII code P1CC7?

- Common symptoms include difficulty starting the vehicle, a dead battery, dimming lights, and intermittent electrical issues.

2. What can cause OBDII code P1CC7 to trigger?

- This code is typically triggered by a short circuit or an open circuit in the main microprocessor supply, which can be caused by wiring issues or a faulty component.

3. How serious is OBDII code P1CC7?

- This code is considered serious as it can lead to various electrical malfunctions in the vehicle, affecting its overall performance and drivability.

4. How can I diagnose the source of OBDII code P1CC7?

- Diagnosing this code usually involves checking the wiring harness for any damage, inspecting the main microprocessor supply circuit, and using a multimeter to test for continuity and voltage.

5. What are the recommended repair tips for OBDII code P1CC7?

- Repair tips include repairing or replacing damaged wiring, addressing any shorted or open circuits in the main microprocessor supply, and ensuring proper connections are made.

6. Can I drive my vehicle with OBDII code P1CC7 active?

- It is not recommended to drive the vehicle with this code active, as it can lead to further electrical issues and potential safety hazards.

7. How much does it cost to repair OBDII code P1CC7?

- The cost of repairing this code can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to consult a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code P1CC7 at home?

- While some DIY enthusiasts may have the skills to diagnose and repair this code, it is recommended to seek professional help due to the complexity of electrical systems in modern vehicles.

9. Are there any preventive measures to avoid OBDII code P1CC7 in the future?

- Regular maintenance of the vehicle's electrical system, including checking for loose connections and damaged wiring, can help prevent issues that may lead to OBDII code P1CC7.

10. Is resetting the OBDII system enough to clear code P1CC7?

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