P2156

Fuel Injector Group D Supply Voltage Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–56 (est.)

Symptoms

Misfire in group D cylinders
Reduced engine power
Increased fuel consumption
Rough engine idling
Check Engine Light Illuminates

Causes

Open or short circuit in the injector power supply circuit
Faulty fuel injector relay
Blown injector circuit fuse
Problems with the engine control unit (ECU)
Corrosion of contacts or connectors

How to Fix

Check the group D injector circuit fuse
Inspect wiring and connectors for damage
Check fuel injector relay
Measure the voltage at the injectors of group D
If necessary, replace faulty components

Related codes

P2157 P2158 P2159