P1263
Cylinder #3 High To Low Side Short
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Misfire in cylinder 3
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Damage to the injector wiring harness
- Cylinder 3 injector malfunction
- Problems in the engine control unit
- Short circuit in control circuit
- Contact corrosion
How to Fix
- Check the integrity of the injector wiring harness
- Test the resistance of the cylinder 3 injector
- Check the voltage at the injector
- Inspect connectors and contacts for corrosion
- If necessary, replace the injector or wiring harness