Nissan Juke Service and Repair Manual : CAN communication circuit
Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Component Function Check
1.CHECK CAN COMMUNICATION CIRCUIT
1. Turn ignition switch ON.
2. Check DTC.
Is DTC detected? YES >> EC-1014, "Diagnosis Procedure" NO >> INSPECTION END.
Diagnosis Procedure
Go to LAN-17, "Trouble Diagnosis Flow Chart".
ASCD steering switch
Component Function Check
1.CHECK ASCD STEERING SWITCH FUNCTION
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals under the following
conditions.
Is the i ...
Cooling fan
Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground Inspection in GI-44, "Circuit
Inspection".
Is the inspectio ...
Other materials:
B26F5 steering lock status switch
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B26F5 is displayed with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to
BCS-83, "DTC Logic".
• If DTC B26F5 is displayed with DTC U1010, first perform the trouble diagnosis
for DTC U1010. Refer to
BCS-84, "D ...
P0544 EGT sensor 1
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or ...
Additional service when replacing TCM
Description
Always perform the following items when the TCM is replaced.
CHECK LOADING OF CALIBRATION DATA
• The TCM acquires calibration data (individual characteristic value) of each
solenoid that is stored in the
ROM assembly (in the control valve). This enables the TCM to perform accurate ...