Page 2865 of 3189
SEL723Y
Component InspectionNJEL0541ECM/COMBINATION METER INTERNAL CIRCUIT
INSPECTION
NJEL0541S01Remove ECM and combination meter from vehicle.
Check resistance between ECM terminals 94 and 86.
Check resistance between combination meter terminals 26
and 27.
Unit Terminal Resistance value (Ω)
ECM 94 - 86
Approx. 108 - 132
Combination meter 26 - 27
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
CAN SYSTEM (TYPE 1)
Component Inspection
EL-529
Page 2866 of 3189
Component Parts and Harness Connector
Location
NJEL0542
SEL822Y
System DescriptionNJEL0543CAN (Controller Area Network) is a serial communication line for real timeapplication. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many
electonic control units are equipped onto a vehicle, and each control unitshares 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 wir-
ing. Each control unit transmits/receives data but selectively reads requireddataonly.
CAN SYSTEM (TYPE 2)
Component Parts and Harness Connector Location
EL-530
Page 2867 of 3189
Wiring Diagram — CAN —NJEL0544LHD MODELSNJEL0544S01
YEL784D
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
CAN SYSTEM (TYPE 2)
Wiring Diagram — CAN —
EL-531
Page 2868 of 3189
RHD MODELSNJEL0544S02
YEL785D
CAN SYSTEM (TYPE 2)
Wiring Diagram — CAN — (Cont’d)
EL-532
Page 2869 of 3189

Trouble DiagnosesNJEL0545WORK FLOWNJEL0545S011. Print all the data of “SELF-DIAG RESULTS” and “DATA MONITOR” for “ENGINE” and “SMART
ENTRANCE” displayed on CONSULT-II. Refer to the following.
“DTC U1000, U1001 CAN COMMUNICATION LINE” (WITH EURO-OBD) (EC-116) for “ENGINE”
“DTC U1000, U1001 CAN COMMUNICATION LINE” (WITHOUT EURO-OBD) (EC-492) for “ENGINE”
“CAN Communication Line Check” (EL-380) for “SMART ENTRANCE”.
2. Attach the printed sheet of “SELF-DIAG RESULTS” and “DATA MONITOR” ontothe check sheet. Refer
to “CHECK SHEET” (EL-534).
3. Based on the data monitor results, put “v” marks onto the items with “UNKWN” or “NG” in the check sheet
table. Refer to “CHECK SHEET” (EL-534).
NOTE:
If “NG” is displayed on “CAN COMM” for the diagnosed control unit, replace the control unit.
4. According to the check sheet results (example), start inspection. Refer to “CHECK SHEET RESULTS
(EXAMPLE)” (EL-535).GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
CAN SYSTEM (TYPE 2)
Trouble Diagnoses
EL-533
Page 2870 of 3189
CHECK SHEETNJEL0545S02
SEL823Y
CAN SYSTEM (TYPE 2)
Trouble Diagnoses (Cont’d)
EL-534
Page 2871 of 3189
CHECK SHEET RESULTS (EXAMPLE)NJEL0545S03
SEL824Y
INSPECTIONNJEL0545S04Proceed trouble diagnosis according to the check sheet results (example).
Case 1: Replace ECM.
Case 2: Replace smart entrance control unit.
Case 3: Check ECM circuit. Refer to “ECM CIRCUIT CHECK” (EL-536).
Case 4: Check smart entrance control unit circuit. Refer to “SMART ENTRANCE CONTROL UNIT CIRCUIT
CHECK” (EL-537).
Case 5: Check combination meter circuit. Refer to “COMBINATION METER CIRCUIT CHECK” (EL-538).
Case 6: Check CAN communication circuit. Refer to “CAN COMMUNICATION CIRCUIT CHECK” (EL-539).
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
CAN SYSTEM (TYPE 2)
Trouble Diagnoses (Cont’d)
EL-535
Page 2872 of 3189
ECM CIRCUIT CHECKNJEL0545S05
1 CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery cable.
3. Check following terminals and connector for damage, bend and loose connection (control module-side and harness-
side).
LHD models
ECM
Harness connector F115
Harness connector M202
RHD models
ECM
Harness connector F43
Harness connector E225
Harness connector E174
Harness connector M159
OK or NG
OK GO TO 2.
NG Repair terminal or connector.
2 CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check resistance between ECM harness connector F114 terminals 94 (L) and86(R).
SEL812Y
OK or NG
OK Replace ECM.
NG Repair harness between ECM and smart entrance control unit.
CAN SYSTEM (TYPE 2)
Trouble Diagnoses (Cont’d)
EL-536