AutoCodes – Jeep – P1035 Jeep

P1035 Jeep Code - Cylinder 1 Oil Supply Solenoid Valve Driver Open Circuit

Quick Answer

Multi-Air is an electronically controlled variable intake valve phase and lift system. Common causes include Faulty Variable Valve Actuator (VVA) Solenoid, Variable Valve Actuator Solenoid harness is open or shorted, Variable Valve Actuator Solenoid 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: P1035 Jeep indicates Cylinder 1 Oil Supply Solenoid Valve Driver Open Circuit.
Common causes: Common causes include Faulty Variable Valve Actuator (VVA) Solenoid, Variable Valve Actuator Solenoid harness is open or shorted, Variable Valve Actuator Solenoid 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 3,188

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 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 P1035 Jeep Description

Multi-Air is an electronically controlled variable intake valve phase and lift system. Unlike conventional intake valve phase and lift system which controls all the cylinder intake valves simultaneously and in the same proportion; Multi-Air, through the use of an electronically controlled hydraulic link between the camshaft and intake valve, allows for each intake valve to be controlled independently. The valve lift and timing can be adjusted infinitely.
The Multi-Air valve train has a mechanical camshaft lobe acting on a hydraulic pump located between the camshaft intake lobe and the intake valve. The pump provides oil under pressure to a two-way electro-hydraulic solenoid valve called the Variable Valve Actuator (VVA) Solenoid. The VVA Solenoid is electronically controlled during the specific intake cam lobe event by the Powertrain Control Module (PCM). During the event, the VVA Solenoid is commanded to either hold oil pressure or bleed oil. The Variable Valve Actuator (VVA) Solenoid is a normally open solenoid. The PCM provides 12 volts to close the solenoid. The position of the VVA Solenoid determines the intake valve timing and lift. This change on valve action is similar to creating a change in the camshaft lobe profile affecting the lift and duration of the valve opening. The Diagnostic Trouble Code (DTC) will be set when the PCM detects an open condition for the VVA Solenoid control.

OBDII Code P1035 Jeep - Cylinder 1 Oil Supply Solenoid Valve Driver Open Circuit - AutoCodes.com — P1035 Jeep Code - Cylinder 1 Oil Supply Solenoid Valve Driver Open Circuit

What does this mean?

What are the Possible Causes of the DTC P1035 Jeep?

Faulty Variable Valve Actuator (VVA) Solenoid
Variable Valve Actuator Solenoid harness is open or shorted
Variable Valve Actuator Solenoid circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1035 Jeep?

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 P1035 Jeep 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 P1035 Jeep Code

1. What are common symptoms of OBDII code P1035 in a Jeep related to the Cylinder 1 Oil Supply Solenoid Valve Driver Open Circuit?

The common symptoms may include rough idling, engine misfires, a decrease in engine performance, and illuminated Check Engine Light.

2. What causes the OBDII code P1035 in a Jeep indicating a Cylinder 1 Oil Supply Solenoid Valve Driver Open Circuit?

The code can be triggered by a faulty oil supply solenoid valve, damaged wiring or connectors, a malfunctioning Engine Control Module (ECM), or low oil pressure.

3. How can I diagnose the issue with OBDII code P1035 in my Jeep?

You can start by checking the wiring and connectors related to the solenoid valve, testing the solenoid valve for proper function, inspecting the oil pressure, and scanning the ECM for any other related fault codes.

4. Is it safe to continue driving my Jeep with OBDII code P1035 active?

It is not recommended to continue driving with this code active, as it can lead to potential engine damage or performance issues. It's best to address the underlying problem as soon as possible.

5. Can I repair OBDII code P1035 in my Jeep by simply clearing the code?

Clearing the code may temporarily turn off the Check Engine Light, but it will not fix the underlying issue causing the fault code. It's important to diagnose and repair the problem to prevent it from reoccurring.

6. How much does it typically cost to repair OBDII code P1035 in a Jeep?

The cost of repairing this code can vary depending on the specific cause of the issue. It may involve replacing the solenoid valve, repairing wiring, or addressing other related components. Costs can range from a few hundred to over a thousand dollars.

7. Can I fix OBDII code P1035 in my Jeep by replacing the solenoid valve myself?

If you have the proper tools, knowledge, and experience working on automotive systems, you may be able to replace the solenoid valve yourself. However, it's recommended to consult a professional mechanic for accurate diagnosis and repair.

8. How urgent is it to address OBDII code P1035 in my Jeep?

While the severity of the issue may vary, it is generally advisable to address this code promptly to prevent potential engine damage or further complications. Ignoring the problem could lead to more extensive repairs down the line.

9. Will OBDII code P1035 cause my Jeep to fail an emissions test?

Yes, having an active OBDII code like P1035 can cause your Jeep to fail an emissions test, as it indicates a malfunction related to the engine control system. It's important to resolve the issue before attempting an emissions test.

10. How can I prevent OBDII code P1035 from occurring in my Jeep in the future?

Regular maintenance, such as oil changes, checking for any signs of oil leaks, and addressing any related warning lights promptly, can help prevent issues like P1035 from occurring in your Jeep.