DESCRIPTION
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
U0100 |
There is no communication from the ECM. |
|
HINT:
For vehicles with a smart key system only.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
PROCEDURE
1. |
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL |
(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ).
|
2. |
CHECK FOR OPEN IN CAN BUS MAIN WIRE (ECM MAIN WIRE) |
(a) Disconnect the F50 ECM connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F50-34 (CANP) - F50-33 (CANN) |
Ignition switch off |
108 to 132 Ω |
*a |
Rear view of wire harness connector (to ECM) |
NG |
REPAIR OR REPLACE ECM MAIN WIRE OR CONNECTOR (CANP, CANN) |
|
3. |
CHECK HARNESS AND CONNECTOR (ECM - BATTERY AND BODY GROUND) |
(a) Connect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ).
*a |
Front view of wire harness connector (to ECM) |
- |
- |
(b) Disconnect the B38, B39 and F51 ECM connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B38-12 (E1) - Body ground |
Always |
Below 1 Ω |
B39-14 (E01) - Body ground |
Always |
Below 1 Ω |
B39-15 (E02) - Body ground |
Always |
Below 1 Ω |
B39-10 (ME01) - Body ground |
Always |
Below 1 Ω |
F51-12 (EC) - Body ground |
Always |
Below 1 Ω |
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F51-24 (BATT) - Body ground |
Always |
11 to 14 V |
F51-23 (+B2) - Body ground |
Battery positive (+) voltage applied to terminal F51-9 (MREL) |
11 to 14 V |
F51-22 (+B) - Body ground |
Battery positive (+) voltage applied to terminal F51-9 (MREL) |
11 to 14 V |
OK |
REPLACE ECM |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR AXLE SHAFT RH
(a) Remove the rear axle shaft RH (See page
).
2. REMOVE REAR AXLE SHAFT LH
HINT:
Use the same procedure described for the RH side.
3. REMOVE PROPELLER SHAFT ASSEMBLY
(a) Remove the propeller shaft asse ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...