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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Control System Diagnosis - 1.6L (2 Of 3) (Except HEV)) >> DTC P0237: Turbocharger/SuperCharger Boost Sensor 'A' Circuit Low >> Wiring Inspection >> Signal circuit inspection

Signal circuit inspection

WARNING: This page is about a different variant/trim than selected.

■ Check short to ground in harness 

  1. IG "OFF" and disconnect BPS connector and ECM connector.
  2. Measure resistance between BPS signal terminal of BPS harness connector and chassis ground.

    Specification:  Infinite

  3. Is the measured Infinite within specification?

    YES 

    • Go to "Check Open in signal circuit" procedure.

    NO 

■ Check Open in signal circuit 

  1. IG "OFF" and disconnect BPS connector and ECM connector.
  2. Measure the resistance between both ends of the BPS signal harness.

    Specification:  Approx. 0 Ω

  3. Is the measured Infinite within specification?

    YES 

    NO