Nissan Murano: Dtc/circuit Diagnosis / B26f1 Ign Relay Off
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC Detection Condition | |
|---|---|---|---|
| B26F1 |
IGN RELAY OFF (Ignition relay off) |
Diagnosis condition | When ignition switch ON. |
| Signal (terminal) | IPDM E/R ignition output 1 (Terminal 70) | ||
| Threshold | Less than 8.8V or more than 16.5V | ||
| Diagnosis delay time | 2 seconds or more | ||
POSSIBLE CAUSE
-
Harness or connectors
(Ignition relay circuit is open)
-
BCM
-
IPDM E/R
FAIL-SAFE
Inhibit engine cranking.
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON under the following conditions, and wait for 2 seconds or more:
-
CVT selector lever is in the P (park) or N (neutral) position.
-
Do not depress brake pedal.
-
-
Select “Self Diagnostic Result” mode of “BCM”.
-
Check DTC.
Is DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO>>Inspection End.
CHECK SELF DIAGNOSTIC RESULT FOR IPDM E/R
CONSULT
-
Select “Self Diagnostic Result” mode of “IPDM E/R”.
-
Erase DTCs.
-
Ignition switch OFF.
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “IPDM E/R”.
Are any DTCs detected?
YES>>Refer to DTC Index.
NO>>GO TO 2.
CHECK IGNITION RELAY (IPDM E/R) CONTROL SIGNAL
Check voltage between BCM harness connector and ground.
| BCM | — | Condition |
Voltage (Approx.) |
|
| Connector | Terminal | |||
| M19 | 70 | Ground | Ignition switch: ON | 0 V |
Is the inspection result normal?
YES>>GO TO 3.
NO>>Replace BCM. Refer to Removal and Installation.
CHECK IGNITION RELAY (IPDM E/R) CONTROL SIGNAL CIRCUIT
-
Ignition switch OFF.
-
Disconnect BCM connector and IPDM E/R connector E119.
-
Check continuity between BCM harness connector and IPDM E/R harness connector.
BCM IPDM E/R Continuity Connector Terminal Connector Terminal M19 70 E119 43 Yes
Is the inspection result normal?
YES>>Replace IPDM E/R. Refer to Removal and Installation.
NO>>Repair or replace harness or connectors.
B261a Push-Btn Ign Sw
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B261A
PUSH-BTN IGN SW
(Push-button ignition switch)
Diagnosis condition
When push-button ignition switch is ON...
Push-Button Ignition Switch Circuit
Component Function Check
CHECK FUNCTION
CONSULT
Select “PUSH SW” in “Data Monitor” mode of “BCM(INTELLIGENT KEY)".
Check the push-button ignition switch signal under the following conditions:
Test item Condition Status
PUSH SW
Push-button ignition switch is pressed
On
Push-button ignition switch is not pressed
Off
Is the indication normal?
YES>>
Inspection End...
Other information:
Nissan Murano (Z52) 2015-2024 Owners Manual: System malfunction
If the RAB system malfunctions, it will be turned off automatically, and the RAB system warning light will illuminate in the vehicle information display. Action to take If the warning light illuminates, park the vehicle in a safe location, turn the engine off, and restart the engine...
Nissan Murano (Z52) 2015-2024 Service Manual: Interior Lighting System :: Symptom Diagnosis. Interior Lighting System Symptoms
Symptom Table NOTE: Perform the “Self Diagnostic Result” with CONSULT before the symptom diagnosis. Perform the trouble diagnosis if any DTC is detected. Symptom Possible cause Inspection item All the following lamps do not turn ON: Front room/map lamp assembly Personal lamp 2nd row LH Personal lamp 2nd row RH Luggage room lamp Vanity lamp LH Vanity lamp RH Harness between BCM and each interior room lamp BCM Battery saver output/power supply circuit...
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