Infiniti P1443: Canister Control Vacuum Switch Circuit Malfunction:

Is your scanner showing Infiniti P1443?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Infiniti P1443: Canister Control Vacuum Switch Circuit Malfunction:

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$130-$750
Can I Still Drive?
:
Yes (Short-term only)

What Does The Infiniti P1443 Code Mean?

Engine started, vehicle driven at cruise speed at light engine load, and the PCM detected the EVAP Canister Control Vacuum Switch indicated off even without any vacuum supplied to the Purge valve.

What Are The Potential Causes Of The Infiniti P1443 Code?

  • EVAP canister control vacuum switch circuit is open
  • EVAP canister control vacuum switch is damaged or has failed
  • PCM has failed

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> 12V Auto Waterproof Fuse Relay Box Block Kit
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Infiniti Electronic Control Module

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Infiniti P1443, DTCDECODE.

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