OBDII Code List

P0351 2005 TOYOTA PRIUS - Ignition Coil 1 Primary/Secondary Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

P0351 2005 Toyota Prius Possible Causes

  • Faulty Ignition Coil 1
  • Ignition Coil 1 harness is open or shorted
  • Ignition Coil 1 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

P0351 2005 Toyota Prius Tech Notes

Ignition Coil "A" refers to coil #1

When is the code detected?

Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails when the ECM does not receive a valid pulse signal from the ignition coil.

P0351 2005 Toyota Prius Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of Power
  • Engine may be harder to start
  • Engine hesitation
  • Rough engine idle

P0351 2005 Toyota Prius Meaning

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.
OBDII Code P0351 2005 Toyota Prius - Ignition Coil 1 Primary/Secondary Circuit - Engine-Codes.com

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