Description
BCM confirms the shift position with the following 2 signals.
CVT selector lever
P/N position switch
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC B2603 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-29, "DTC Logic".
If DTC B2603 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-30, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Start the engine under the following conditions and wait for at least 1 second.
CVT selector lever is in the P position.
Do not depress the brake pedal.
Shift to N and wait for at least 1 second.
Shift to any gear other than P or N and wait for at least 1 second.
Check "Self diagnostic result" with CONSULT.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to SEC-147, "Wiring Diagram" or SEC-128, "Wiring Diagram".
1.CHECK DTC WITH IPDM E/R
Check "Self diagnostic result" with CONSULT. Refer to PCS-27, "DTC Index".
2.CHECK TRANSMISSION RANGE SWITCH CIRCUIT
Turn ignition switch OFF.
Disconnect TCM harness connector and BCM harness connector.
Check continuity between TCM harness connector F15 (A) terminal 20 and BCM harness connector M18 (B) terminal 48.
4. Check continuity between TCM harness connector F15 (A) terminal 20 and ground.
3.CHECK CVT SHIFT SELECT POWER SUPPLY
Turn ignition switch OFF.
Disconnect CVT shift selector harness connector.
Check voltage between CVT shift selector harness connector M78 terminal 8 and ground.
4.CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT
Disconnect BCM harness connector.
Check continuity between BCM harness connector M19 (A) terminal 84 and CVT shift selector harness connector M78 (B) terminal 8.
3. Check continuity between BCM harness connector M19 (A) terminal 84 and ground.
5.CHECK CVT SHIFT SELECTOR CIRCUIT
Disconnect BCM harness connector.
Check continuity between BCM harness connector M19 (A) terminal 87 and CVT shift selector harness connector M78 (B) terminal 9.
3. Check continuity between BCM harness connector M19 (A) terminal 87 and ground.
6.CHECK CVT SHIFT SELECTOR
Refer to SEC-52, "Component Inspection".
7.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
Inspection End.
Power supply and ground circuit
BCM
BCM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-67,
"Wiring Diagram".
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are
blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect B ...
ABS branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the ABS actuator and
electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
...
Tire equipment
1. SUMMER tires have a tread designed to
provide superior performance on dry pavement.
However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your vehicle
on snowy or icy roads, NISSAN recommends
the use of MUD & SNOW or ALL
SEA ...