AutoCodes – Cadillac – C0407 Cadillac

C0407 Cadillac Code - AWD Oil Pump Motor

Quick Answer

The differential clutch pump delivers hydraulic oil pressure to the rear drive clutch solenoid valve and the rear differential clutch solenoid valve. Common causes include Faulty AWD Oil Pump Motor, AWD Oil Pump Motor harness is open or shorted, AWD Oil Pump Motor 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: C0407 Cadillac indicates AWD Oil Pump Motor.
Common causes: Common causes include Faulty AWD Oil Pump Motor, AWD Oil Pump Motor harness is open or shorted, AWD Oil Pump Motor 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 9,616

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 Jul 04, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C0407 Cadillac Description

The differential clutch pump delivers hydraulic oil pressure to the rear drive clutch solenoid valve and the rear differential clutch solenoid valve. The pump is mounted to the torque transfer device housing. The pressure of the system is calculated by the rear differential clutch control module which monitors the differential clutch pump motor current levels. When the pressure reaches approximately 3200 kPa (464 psi), the rear differential clutch control module determines that the system pressure has been obtained and deacvitates the differential clutch pump. When the pressure drops below approximately 2700 kPa (392 psi), the rear differential clutch control module will reactivate the differential clutch pump.

OBDII Code C0407 Cadillac - AWD Oil Pump Motor - AutoCodes.com — C0407 Cadillac Code - AWD Oil Pump Motor

What does this mean?

What are the Possible Causes of the DTC C0407 Cadillac?

Faulty AWD Oil Pump Motor
AWD Oil Pump Motor harness is open or shorted
AWD Oil Pump Motor circuit poor electrical connection

How to Fix the DTC C0407 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 does this mean?

Code Tech Notes

- C0407 02 AWD Oil Pump Motor Short to Ground
- C0407 04 AWD Oil Pump Motor Open
- C0407 0B AWD Oil Pump Motor High Current
- C0407 64 AWD Oil Pump Motor Component Slipping

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0407 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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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 C0407 Cadillac Code

1. What are common symptoms of OBDII code C0407 in a Cadillac related to the AWD oil pump motor?

The common symptoms include an illuminated check engine light, reduced traction control functionality, and potential issues with the all-wheel drive system.

2. What could cause OBDII code C0407 to trigger in a Cadillac?

The code C0407 in a Cadillac is typically triggered by a malfunction in the AWD oil pump motor, which may be caused by electrical faults, wiring issues, or a faulty oil pump motor itself.

3. How can I diagnose the AWD oil pump motor issue associated with OBDII code C0407 in my Cadillac?

Diagnosing the problem involves conducting a thorough inspection of the AWD system, checking the wiring and connections to the oil pump motor, and testing the motor itself for proper functionality.

4. Can I continue driving my Cadillac with OBDII code C0407 related to the AWD oil pump motor issue?

It is not recommended to drive the vehicle with an unresolved AWD oil pump motor problem as it can lead to further damage to the all-wheel drive system and affect the vehicle's overall performance.

5. What are some repair tips for fixing OBDII code C0407 in a Cadillac due to the AWD oil pump motor malfunction?

Repairing the issue may involve replacing the faulty oil pump motor, repairing any damaged wiring or connections, clearing the error code, and conducting a thorough test drive to ensure the problem is resolved.

6. Is the repair for OBDII code C0407 related to the AWD oil pump motor something I can do myself, or should I seek professional help?

Due to the complexity of the AWD system and the specialized equipment needed for diagnosis and repair, it is recommended to seek professional help from a qualified mechanic or dealership for resolving code C0407 in a Cadillac.

7. How much can I expect to pay for repairing OBDII code C0407 in a Cadillac caused by the AWD oil pump motor issue?

The cost of repairing OBDII code C0407 can vary depending on the extent of the damage, parts needed for replacement, and labor costs. It is advisable to get a quote from a professional technician for an accurate estimate.

8. Are there any preventive maintenance measures I can take to avoid OBDII code C0407 related to the AWD oil pump motor in my Cadillac?

Regularly servicing the AWD system, checking for any signs of oil pump motor malfunction, and addressing any warning lights or symptoms promptly can help prevent code C0407 from occurring in your Cadillac.