PassoFix

P0443 (blink 76) on Toyota Passo (KGC10): Vsv For Evaporative Emission Control System Purge Con

Short answer: P0443 means “Vsv For Evaporative Emission Control System Purge Con”. 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 harness between the VSV for evaporative emission purge and the EFI ECU normal?.

Code
P0443 · blink 76
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 detection signal of the VSV for evaporative emission purge is not turned "ON" or "OFF"

Likely causes

  1. VSV for evaporative emission control system purge control (Purge VSV for EVAP)
  2. Open wire or short circuit for the evaporative emission purge VSV control system circuit
  3. EFI ECU

What to check, in order

  1. Is the harness between the VSV for evaporative emission purge and the EFI ECU normal?
  2. Is the control signal of the VSV for evaporative emission purge outputted from the EFI ECU normally?
  3. Is the VSV for evaporative emission purge operating normally?

Related on this car

Same code on other cars

← P0401/79 P0500/52 →

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.