P103A Code - Cylinder 2 Oil Supply Solenoid Valve Driver Short To Ground
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
- P103A indicates Cylinder 2 Oil Supply Solenoid Valve Driver Short To Ground.
- 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.
Code P103A Description
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 a short to ground in the Solenoid Signal or Return circuit.
What are the Possible Causes of the DTC P103A?
- 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 P103A?
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 P103A 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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Information for Specific Makes
- P103A BMW — VVL System Current Too High
- P103A Chrysler — Cylinder 2 Oil Supply Solenoid Valve Driver Short To Ground
- P103A Dodge — Cylinder 2 Oil Supply Solenoid Valve Driver Short To Ground
- P103A Fiat — Cylinder 2 Oil Supply Solenoid Valve Driver Short To Ground
- P103A Jeep — Cylinder 2 Oil Supply Solenoid Valve Driver Short To Ground
- P103A MINI — VVL System Current Too High
Frequently Asked Questions about P103A Code
1. What does the OBDII code P103A mean?
P103A indicates a short to ground in the circuit controlling the oil supply solenoid valve for cylinder 2, which can affect engine performance.
2. What are the symptoms of a P103A code?
Symptoms may include rough idling, decreased engine performance, poor fuel economy, and in some cases, the Check Engine Light turning on.
3. What causes the P103A code to appear?
Common causes include damaged wiring or connectors, a faulty oil supply solenoid valve, or a malfunctioning engine control module (ECM).
4. Can I drive my car with a P103A code?
While the car may still be drivable, continuing to drive could lead to further damage to the engine or oil control system, so it’s recommended to address the issue promptly.
5. How do you diagnose a P103A code?
Diagnosis typically involves using a multimeter to check for shorts in the wiring, inspecting the solenoid valve and connectors, and testing the ECM for proper function.
6. How can I fix the P103A code?
Repairs may include replacing damaged wiring, repairing or replacing the oil supply solenoid valve for cylinder 2, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to fix a P103A code?
The repair cost can range from $100 to $500, depending on whether the issue involves wiring repairs, solenoid replacement, or ECM replacement.
8. What happens if I ignore the P103A code?
Ignoring the code can lead to engine damage, reduced performance, and potential failure of the oil control system over time.
9. Is the P103A code specific to certain vehicles?
While P103A is a standardized OBDII code, its specific meaning and repair process may vary slightly by manufacturer. Always consult your vehicle’s service manual.
10. Can a low oil level cause the P103A code?
Low oil levels typically don’t cause this code, but maintaining proper oil levels is crucial for solenoid function and overall engine health.
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