What Does P2153 Mean?
The PCM detects abnormally low voltage in the power supply circuit for fuel injector group C. Voltage exists but is insufficient for proper injector operation.
Safety Warning
Vehicle may exhibit significant power loss and rough running, potentially stalling unexpectedly. Prolonged operation may damage catalytic converter from misfires.
Common Causes
40%
High resistance in wiring or corroded connections reducing voltage
25%
Weak fuel injector relay with excessive internal resistance
20%
Partially shorted fuel injector creating excessive current draw
15%
Poor ground connection causing voltage drop in return path
Diagnostic Steps
1
Step 1: Measure voltage at injector group C connector with key on (should be near battery voltage)
2
Step 2: Perform voltage drop test on power supply circuit while engine is cranking or running
3
Step 3: Inspect and clean all ground connections for injector group C circuit
4
Step 4: Test relay operation and measure voltage drop across relay contacts under load
5
Step 5: Test individual injector resistance to identify shorted or out-of-specification injectors
Estimated Repair Cost
$80 - $700
Parts + labor, varies by vehicle and location
The PCM detects abnormally low voltage in the power supply circuit for fuel injector group C. Voltage exists but is insufficient for proper injector operation.
The most common cause of P2153 (Fuel Injector Group "C" Supply Voltage Circuit Low) is: High resistance in wiring or corroded connections reducing voltage
Typical repair costs for P2153 range from $80 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may exhibit significant power loss and rough running, potentially stalling unexpectedly. Prolonged operation may damage catalytic converter from misfires.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2153 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Fuel System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
