Nissan Juke Service and Repair Manual : B26FA cranking request circuit
DTC Logic
DTC DETECTION LOGIC
NOTE
:
• If DTC B26FA is displayed with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to
BCS-83, "DTC Logic".
• If DTC B26FA is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to BCS-84, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION
1. Perform DTC CONFIRMATION PROCEDURE for DTC P1650. Refer to EC-366, "DTC Logic" (MR16DDT) or EC-725, "DTC Logic" (HR16DE).
2. Turn ignition switch ON.
3. Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.
Is DTC detected? YES >> Go to SEC-130, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Proced
1.CHECK CRANKING REQUEST SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM harness connector and ground under the following conditions
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK CRANKING REQUEST SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Disconnect ECM connector.
4. Check continuity between BCM harness connector and ECM harness connector.
5. Check continuity between BCM harness connector and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness.
3.REPLACE BCM
1. Replace BCM. Refer to BCS-93, "Removal and Installation".
2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT-III.
For initialization and registration procedures, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.
3. Perform DTC CONFIRMATION PROCEDURE for DTC B26FA. Refer to SEC-130, "DTC Logic".
Is DTC detected? YES >> GO TO 4.
NO >> INSPECTION END
4.REPLACE ECM
Replace ECM.
Refer to EC-447, "Removal and Installation" (MR16DDT) or EC-805, "Removal and Installation" (HR16DE).
>> INSPECTION END
B26F9 cranking request circuit
DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B26F9 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to BCS-83, "DTC Logic". • If DTC B26F9 is disp ...B26FB clutch switch
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INPUT/OUTPUT SIGNAL CHART
*: ECM determines the start signal status by the engine speed signal and
battery voltage.
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DTC Logic
DTC DETECTION LOGIC
DTC COFIRMATION PROCEDURE
CAUTION:
• Be sure to perform "TM-444, "Diagnosis Procedure"" and then perform "DTC
CONFIRMATION PROCEDURE".
• Never perform "TC CONFIRMATION PROCEDURE" before the repairs. Doing so may
result ...
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DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn
ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, p ...