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Home >> Infiniti >> 2012 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1550 To P2A03 >> DTC P1650: Starter Motor Relay 2 >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:
  • If DTC P1650 is displayed with DTC U1001, perform the trouble diagnosis for DTC U1001. Refer to "DTC LOGIC ".
  • If DTC P1650 is displayed with DTC P0607, perform the trouble diagnosis for DTC P0607. Refer to "DTC LOGIC ".
  • If DTC P1650 is displayed with B209F or B20A0 of IPDM E/R, perform the trouble diagnosis for B209F or B20A0. Refer to "DTC LOGIC " or "DTC LOGIC ".
  • If DTC P1650 is displayed with B26F9 or B26FA of BCM, perform the trouble diagnosis for B209F or B20A0. Refer to "DTC LOGIC " or "DTC LOGIC ".
DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P1650 STR MTR RELAY 2
(Starter relay circuit)		 A Starter relay is stuck ON.
  • Harness and connectors

    (Between IPDM E/R harness connector and ECM harness connector is shorted to ground.)

    (Between IPDM E/R harness connector and BCM harness connector is shorted to ground.)

  • IPDM E/R
B Starter relay power supply circuit is excessively high voltage.
  • Harness and connectors

    (Between IPDM E/R harness connector and ECM harness is open or shorted to power.)

    (Between IPDM E/R harness connector and BCM harness is open or shorted to power.)

    (Between IPDM E/R harness connector and battery is open.)

  • IPDM E/R
C Starter relay circuit is excessively low voltage
  • Harness and connectors

    (Starter relay circuit is open or shorted.)

  • IPDM E/R
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