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Home >> Nissan-Datsun >> 2019 >> Maxima SL >> Repair and Diagnosis (Single Page) >> Body & Frame >> Ignition Switch/Steering Lock >> Security Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC B20A9: IPDM External MALF For St2 >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

NOTE:
  • If DTC B20A9 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Description .
  • If DTC B20A9 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC Description .

DTC No.

CONSULT screen terms (Trouble diagnosis content)

DTC Detection Condition

B20A9

IPDM EXTERNAL MALF FOR ST2

(IPDM external malfunction for ST2)

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

  • Starter control circuit (terminal 33)
  • Fusible link ignition switch circuit (terminal 3)

Threshold

-

Diagnosis delay time

1 second or more