P1793
Ignition Supply Malfunction
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)
Symptoms
- Unstable engine operation
- Difficulty starting the engine
- Power Loss
- Increased fuel consumption
- Check Engine Light Is On
Causes
- Damage to the ignition system wiring harness
- Ignition relay malfunction
- Problems with the ignition fuse
- Short circuit in the circuit
- Ignition coil malfunction
How to Fix
- Check the condition of the ignition system fuses
- Inspect the wiring harness for damage
- Check the functionality of the ignition relay
- Diagnose the ignition coil
- Check the voltage in the power circuit