P21E5
Cylinder 5 Injector B Circuit High
P21E5 is an OBD-II diagnostic trouble code meaning: Cylinder 5 Injector B Circuit High. Common causes: short circuit in the injector circuit, cylinder 5 injector malfunction. Estimated repair cost: $17–89.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminates
- Misfire in cylinder 5
Causes
- Short circuit in the injector circuit
- Cylinder 5 injector malfunction
- Wiring harness damage
- Problems with the engine control unit
- Oxidation of contacts in connectors
How to Fix
- Check the resistance of the injector of cylinder 5
- Inspect the wiring harness and connectors for damage.
- Check the voltage in the injector circuit
- Replace the injector if necessary
- Flash or replace the ECU if it is faulty
Related codes
Error P21E5 by Vehicle Brand
FAQ
What does the P21E5 code mean?
P21E5 is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Injector B Circuit High
What causes a P21E5 error code?
The most common causes of P21E5 include: Short circuit in the injector circuit; Cylinder 5 injector malfunction; Wiring harness damage; Problems with the engine control unit.
How do I fix a P21E5 diagnostic trouble code?
To fix P21E5: Check the resistance of the injector of cylinder 5. Inspect the wiring harness and connectors for damage.. Check the voltage in the injector circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P21E5?
Yes, but get it checked soon
How much does it cost to fix P21E5?
The estimated repair cost for P21E5 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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