OBD Guide
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P103C

Cylinder 3 Oil Supply Solenoid Valve Driver Short To Battery

P103C is an OBD-II diagnostic trouble code meaning: Cylinder 3 Oil Supply Solenoid Valve Driver Short To Battery. Common causes: short circuit in solenoid circuit, vvt solenoid malfunction. Estimated repair cost: $28–94.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–94 (est.)

Symptoms

  • Unstable engine operation
  • Power Loss
  • Increased fuel consumption
  • Check Engine Light Is On
  • Possible noise in the timing belt

Causes

  • Short circuit in solenoid circuit
  • VVT solenoid malfunction
  • Wiring harness damage
  • Problems with the engine control unit
  • Contact corrosion

How to Fix

  1. Check solenoid circuit for short circuit
  2. Diagnose solenoid resistance
  3. Check connectors and wiring harness
  4. If necessary, replace the solenoid
  5. Check the engine control unit

Related codes

P103AP103BP103D

FAQ

What does the P103C code mean?

P103C is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Oil Supply Solenoid Valve Driver Short To Battery

What causes a P103C error code?

The most common causes of P103C include: Short circuit in solenoid circuit; VVT solenoid malfunction; Wiring harness damage; Problems with the engine control unit.

How do I fix a P103C diagnostic trouble code?

To fix P103C: Check solenoid circuit for short circuit. Diagnose solenoid resistance. Check connectors and wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P103C?

Yes, but get it checked soon

How much does it cost to fix P103C?

The estimated repair cost for P103C is $28–94. Actual cost depends on your vehicle, location, and labor rates.

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