AutoCodes – Cadillac – P0970 Cadillac

P0970 Cadillac Code - Pressure Control Solenoid Valve 3 Control Circuit Low Voltage

Quick Answer

The pressure control solenoid 3 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid, Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly 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: P0970 Cadillac indicates Pressure Control Solenoid Valve 3 Control Circuit Low Voltage.
Common causes: Common causes include Low transmission fluid, Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly 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 1,473

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 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0970 Cadillac Description

The pressure control solenoid 3 is part of the control solenoid valve assembly which has no serviceable parts. The normally high-pressure control solenoid 3 regulates and directs the pressure control solenoid 3 oil pressure to the 4-5-6 clutch regulator valve and 4-5-6 clutch boost valve. Increasing pressure control solenoid 3 oil pressure increases oil pressure to the 4-5-6 clutch assembly. The Transmission Control Module (TCM) varies the current to the pressure control solenoid 3 through a low side driver. Decreasing the current to the pressure control solenoid 3 increases pressure control solenoid 3 oil pressure by closing OFF the solenoid exhaust port. Increasing the current to the pressure control solenoid 3 decreases pressure control solenoid 3 oil pressure by opening the solenoid exhaust port. Pressure control solenoid 3 power is supplied by the Transmission Control Module through a high side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected the high-side driver will reset.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects a short to ground on the pressure control solenoid 3 control circuit for 1 s.

OBDII Code P0970 Cadillac - Pressure Control Solenoid Valve 3 Control Circuit Low Voltage - AutoCodes.com — P0970 Cadillac Code - Pressure Control Solenoid Valve 3 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0970 Cadillac?

Low transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness is open or shorted
Control Solenoid Valve Assembly circuit poor electrical connection

How to Fix the DTC P0970 Cadillac?

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 P0970 Cadillac 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 P0970 Cadillac Code

1. What are the common symptoms of OBDII code P0970 in a Cadillac related to the Pressure Control Solenoid Valve 3 Control Circuit Low Voltage?

- Common symptoms include harsh shifting, transmission slipping, poor fuel efficiency, and the transmission going into limp mode.

2. What are the possible causes of the OBDII code P0970 in a Cadillac?

- The code can be triggered by issues such as a faulty pressure control solenoid valve, damaged wiring or connectors in the circuit, low transmission fluid, or a malfunctioning transmission control module.

3. How can I diagnose the cause of OBDII code P0970 in my Cadillac?

- Diagnosis typically involves checking the transmission fluid level and condition, inspecting the wiring and connectors related to the pressure control solenoid valve, and using a scan tool to monitor the valve's operation.

4. Can I continue driving my Cadillac with OBDII code P0970 present?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the transmission and potentially result in a complete transmission failure.

5. What are the repair options for fixing OBDII code P0970 in a Cadillac?

- Repair options may include replacing the pressure control solenoid valve, repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the trouble code with a diagnostic tool.

6. How much does it typically cost to repair OBDII code P0970 in a Cadillac?

- The cost of repairs can vary depending on the exact cause of the issue, but it is advisable to budget for potential expenses related to parts, labor, and diagnostic fees.

7. Is it possible to reset OBDII code P0970 in a Cadillac without fixing the underlying issue?

- While it is possible to clear the trouble code with a scan tool, the issue causing the code will persist, potentially leading to further problems down the line.

8. How can I prevent OBDII code P0970 from reoccurring in my Cadillac?

- Regular maintenance of the transmission system, including checking fluid levels, inspecting for leaks, and addressing any warning signs promptly, can help prevent the recurrence of this code.

9. Can a DIY enthusiast fix OBDII code P0970 in a Cadillac, or is professional help necessary?

- Depending on the root cause of the issue, some DIY repairs may be possible for those with mechanical knowledge and experience. However, in cases involving complex transmission components, professional help is often recommended.

10. Are there any technical service bulletins (TSBs) related to OBDII code P0970 in Cadillac vehicles?

- It is advisable to check with a Cadillac dealership or online databases for any relevant TSBs that may provide specific guidance or solutions for addressing this particular OBDII code.