P0CA0 — 14 Volt Power Module Current Sensor B Circuit Intermittent

What Does P0CA0 Mean?

P0CA0 is a diagnostic trouble code indicating: 14 Volt Power Module Current Sensor B Circuit Intermittent. This code relates to the vehicle systems system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0CA0

⚠️ Check Engine Light (MIL) illuminated
⚠️ 14 Volt Power Module Current Sensor B signal cutting in and out
⚠️ Related system working sometimes but not consistently
⚠️ System warning light illuminated

Common Causes

🔍 Loose or intermittent connection at 14 Volt Power Module Current Sensor B
🔍 Wire chafing causing intermittent contact
🔍 14 Volt Power Module Current Sensor B failing under heat or vibration
🔍 Corroded connector pins with partial contact

Frequently Asked Questions

What does P0CA0 mean?

P0CA0 indicates: 14 Volt Power Module Current Sensor B Circuit Intermittent. The vehicle's computer has detected that the 14 Volt Power Module Current Sensor B is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0CA0?

Yes, P0CA0 is generally safe to drive with in the short term. However, it should still be addressed to pass emissions testing and prevent potential secondary issues.

How much does it cost to fix P0CA0?

Repair costs for P0CA0 typically range from $30 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and reseat all 14 Volt Power Module Current Sensor B connectors
🔧 Repair chafed or damaged wiring in 14 Volt Power Module Current Sensor B circuit
🔧 Replace 14 Volt Power Module Current Sensor B if failing intermittently

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P0CA0: 14 Volt Power Module Current Sensor B Circuit Intermittent