P0325 (blink 18) on Toyota Passo (KGC10): Knock Sensor 1 Circuit Malfunction

Short answer: P0325 means “Knock Sensor 1 Circuit Malfunction”. The car’s computer has found a fault in the Engine control (EFI) system and turns on the Check engine light (MIL). First check: is the signal from the knock sensor inputted to the EFI ECU?.

Code

P0325 · blink 18

System

Engine control (EFI)

Dashboard light

Check engine light (MIL)

Also sold as

Daihatsu Boon, Daihatsu Sirion (M300)

Applies to

1KR-FE: M300 (Sirion export = JDM Boon M300S/M301S(4WD? see gaps) & Passo KGC10/KGC15). JDM-spec ECU not separately documented | K3-VE: M301 (Sirion 1.3 = JDM Boon M310S? / Passo QNC10)

Confidence

high (factory manual, export spec)

Source

carmanualsclub.com

Symptoms and when it is set

1. When the signals from the knock sensor are not outputted continuously after starting over a certain length of time.

Likely causes

1. Open wire or short circuit for knock sensor system circuit
2. Knock sensor
3. EFI ECU

What to check, in order

1. Is the signal from the knock sensor inputted to the EFI ECU?
2. Is the harness between the knock sensor and the EFI ECU normal?
3. Is the output of the knock sensor normal?

Related on this car

• All fault codes for this car
• Warning lights
• Where the parts are (parts map)
• Common problems

Same code on other cars

• P0325 · Toyota Vitz (1st gen)
• P0325 · Toyota Corolla (9th gen, E120)
• P0325 · Toyota Corolla (11th gen, E170)
• P0325 · Toyota Corolla (10th gen, E140)
• P0325 · Honda City (5th gen, GM2)
• P0325 · Honda Civic (10th gen, FC)
• P0325 · Suzuki Wagon R (Pakistan, K10B)
• P0325 on all cars compared

← P0300/17 P0335/13 →

Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.