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P2152

Critical
Moderate

Fuel Injector Group "C" Supply Voltage Circuit/Open

What Does P2152 Mean?

The PCM has detected an open circuit or electrical fault in the power supply circuit feeding fuel injector group C. Injectors in this group are not receiving proper voltage for operation.

Safety Warning

Engine may run extremely rough or fail to start if multiple cylinders are not receiving fuel. Continued driving can cause catalytic converter damage.

Common Causes

35%

Open or corroded wiring in injector power supply circuit for group C

Injector Harness
Wiring Connectors

30%

Blown fuse or faulty injector driver relay for group C

Fuse
Fuel Injector Relay

20%

Failed PCM injector driver circuit for group C

Engine Control Module (PCM)

15%

Damaged or internally shorted fuel injector causing circuit protection to open

Fuel Injector

Diagnostic Steps

1

Step 1: Check all fuses and relays related to fuel injector group C power supply

2

Step 2: Inspect injector harness connector at group C for damage, corrosion, or bent pins

3

Step 3: Use multimeter to verify battery voltage at injector power supply wire with key on

4

Step 4: Test circuit continuity from power source to injectors and from injector grounds to PCM

5

Step 5: Measure individual injector coil resistance and compare to manufacturer specifications

Estimated Repair Cost

$100 - $800

Parts + labor, varies by vehicle and location

Frequently Asked Questions

What does P2152 mean?

The PCM has detected an open circuit or electrical fault in the power supply circuit feeding fuel injector group C. Injectors in this group are not receiving proper voltage for operation.

What causes P2152?

The most common cause of P2152 (Fuel Injector Group "C" Supply Voltage Circuit/Open) is: Open or corroded wiring in injector power supply circuit for group C

How much does it cost to fix P2152?

Typical repair costs for P2152 range from $100 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.

Is it safe to drive with P2152?

Engine may run extremely rough or fail to start if multiple cylinders are not receiving fuel. Continued driving can cause catalytic converter damage.

How do I diagnose P2152?

Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2152 to identify the root cause.

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Quick Info

Category

Powertrain

System

Fuel System

Difficulty

Moderate

Type

Generic (SAE)

Recommended Tools

OBD2 Scanner

A quality scan tool helps you read codes, view live data, and clear faults.