Nissan Rogue (T33) 2021-Present Service Manual: B20dd-73 Ign Relay on Circ
DTC Description
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IPDM E/R operates the ignition relay when it receives an ignition ON signal from BCM via CAN communication.
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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.
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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):
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Press and hold the push-button ignition switch for 2 seconds or more.
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Press the push-button ignition switch 3 times within 1.5 seconds.
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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
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Ignition switch ON.
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Ignition switch OFF and wait for 1 second or more.
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Ignition switch ON.
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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
-
Ignition switch ON
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Select “Self diagnosis result” mode of “IPDM E/R”.
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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
-
Return fuse [No. 74 (10A)] downstream of the ignition relay in the IPDM E/R back to the original position.
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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
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Return fuse [No. 73 (10A)] downstream of the ignition relay in the IPDM E/R back to the original position.
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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
-
Return fuse [No. 76 (5A)] downstream of the ignition relay in the IPDM E/R back to the original position.
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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
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Return fuse [No. 71 (10A)] downstream of the ignition relay in the IPDM E/R back to the original position.
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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
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Return fuse [No. 81 (15A)] downstream of the ignition relay in the IPDM E/R back to the original position.
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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.
Other materials:
U2150 Can Comm Circuit
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U2150
83
CAN comm err (AIRBAG)
[CAN comm err (AIRBAG)]
Diagnosis condition
Ignition switch ON
Signal (terminal)
CAN communication signal
87
Thr ...
P0486 Egr Differential Pressure Sensor
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0486
00
EGR SENSOR B
(EGR sensor B circuit)
Diagnosis condition
—
Signal (terminal)
—
Threshold
ECM detects that a voltage signal from EGR ...
Laser Branch Line Circuit
Diagnosis Procedure
CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
Distance sensor
Harness connector B2 ...
