Nissan Rogue (T33) 2021-Present Service Manual: B20dd-73 Ign Relay on Circ

Nissan Rogue (T33) 2021-Present Service Manual / Electrical & Power Control :: Power Control System / Ipdm E/r :: Dtc/circuit Diagnosis / B20dd-73 Ign Relay on Circ

DTC Description

  • IPDM E/R operates the ignition relay when it receives an ignition ON signal from BCM via CAN communication.

  • Turn the ignition relay OFF by pressing the push-button ignition switch once when the Nissan Ariya vehicle speed is 2.5 MPH (4 km/h) or less.

  • Turn the ignition relay OFF with the following operation when the Nissan Ariya vehicle speed is more than 2.5 MPH (4 km/h) or when an abnormal condition occurs in CAN communication from the ABS actuator and electric unit (control unit) (emergency OFF):

    • Press and hold the push-button ignition switch for 2 seconds or more.

    • Press the push-button ignition switch 3 times within 1.5 seconds.

NOTE:

The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch is pressed.

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC detection condition
B20DD-73

IGN RELAY ON CIRC

(Ignition relay ON circuit) 		[ACTUATOR STUCK CLOSED] Diagnosis condition When ignition switch is OFF
Signal (terminal) CPU monitors the status at the contact and excitation coil circuits of the ignition relay inside it
Threshold The ignition relay ON is detected
Diagnosis delay time 1 second or more

POSSIBLE CAUSE

IPDM E/R

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  2. Ignition switch OFF and wait for 1 second or more.

  3. Ignition switch ON.

  4. Select “Self diagnosis result” mode of “IPDM E/R”.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT 1

CONSULT

  1. Ignition switch ON

  2. Select “Self diagnosis result” mode of “IPDM E/R”.

  3. Remove fuse [No. 74 (10A)] downstream of the ignition relay in the IPDM E/R, and check the change in “Self diagnosis result”.

Is it now a past malfunction?

YES>>

Perform an inspection of the downstream circuit of fuse [No. 74 (10A)] downstream of the ignition relay in the IPDM E/R.

NO>>

GO TO 2.

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT 2

CONSULT

  1. Return fuse [No. 74 (10A)] downstream of the ignition relay in the IPDM E/R back to the original position.

  2. Remove fuse [No. 73 (10A)] downstream of the ignition relay in the IPDM E/R, and check the change in “Self diagnosis result”.

Is it now a past malfunction?

YES>>

Perform an inspection of the downstream circuit of fuse [No. 73 (10A)] downstream of the ignition relay in the IPDM E/R.

NO>>

GO TO 3.

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT 3

CONSULT

  1. Return fuse [No. 73 (10A)] downstream of the ignition relay in the IPDM E/R back to the original position.

  2. Remove fuse [No. 76 (5A)] downstream of the ignition relay in the IPDM E/R, and check the change in “Self diagnosis result”.

Is it now a past malfunction?

YES>>

Perform an inspection of the downstream circuit of fuse [No. 76 (5A)] downstream of the ignition relay in the IPDM E/R.

NO>>

GO TO 4.

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT 4

CONSULT

  1. Return fuse [No. 76 (5A)] downstream of the ignition relay in the IPDM E/R back to the original position.

  2. Remove fuse [No. 71 (10A)] downstream of the ignition relay in the IPDM E/R, and check the change in “Self diagnosis result”.

Is it now a past malfunction?

YES>>

Perform an inspection of the downstream circuit of fuse [No. 71 (10A)] downstream of the ignition relay in the IPDM E/R.

NO>>

GO TO 5.

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT 5

CONSULT

  1. Return fuse [No. 71 (10A)] downstream of the ignition relay in the IPDM E/R back to the original position.

  2. Remove fuse [No. 81 (15A)] downstream of the ignition relay in the IPDM E/R, and check the change in “Self diagnosis result”.

Is it now a past malfunction?

YES>>

Perform an inspection of the downstream circuit of fuse [No. 81 (15A)] downstream of the ignition relay in the IPDM E/R.

NO>>

GO TO 6.

CHECK IGNITION RELAY POWER SUPPLY CIRCUIT 6

CONSULT

  1. Return fuse [No. 81 (15A)] downstream of the ignition relay in the IPDM E/R back to the original position.

  2. Remove fuse [No. 85 (20A)] downstream of the ignition relay in the IPDM E/R, and check the change in “Self diagnosis result”.

Is it now a past malfunction?

YES>>

Perform an inspection of the downstream circuit of fuse [No. 85 (20A)] downstream of the ignition relay in the IPDM E/R.

NO>>

Replace IPDM E/R. Refer to Removal and Installation.

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